| // WARNING: locking bug in try_to_grab_pending |
| // https://syzkaller.appspot.com/bug?id=86c7f0dd3bfa4cd651bb37a04da2cfcabd860225 |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <arpa/inet.h> |
| #include <dirent.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <net/if.h> |
| #include <net/if_arp.h> |
| #include <netinet/in.h> |
| #include <pthread.h> |
| #include <sched.h> |
| #include <setjmp.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <sys/mount.h> |
| #include <sys/prctl.h> |
| #include <sys/resource.h> |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <sys/uio.h> |
| #include <sys/wait.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include <linux/futex.h> |
| #include <linux/genetlink.h> |
| #include <linux/if_addr.h> |
| #include <linux/if_ether.h> |
| #include <linux/if_link.h> |
| #include <linux/if_tun.h> |
| #include <linux/in6.h> |
| #include <linux/ip.h> |
| #include <linux/neighbour.h> |
| #include <linux/net.h> |
| #include <linux/netlink.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/tcp.h> |
| #include <linux/veth.h> |
| |
| unsigned long long procid; |
| |
| static __thread int skip_segv; |
| static __thread jmp_buf segv_env; |
| |
| static void segv_handler(int sig, siginfo_t* info, void* ctx) |
| { |
| uintptr_t addr = (uintptr_t)info->si_addr; |
| const uintptr_t prog_start = 1 << 20; |
| const uintptr_t prog_end = 100 << 20; |
| if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) && |
| (addr < prog_start || addr > prog_end)) { |
| _longjmp(segv_env, 1); |
| } |
| exit(sig); |
| } |
| |
| static void install_segv_handler(void) |
| { |
| struct sigaction sa; |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_handler = SIG_IGN; |
| syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); |
| syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_sigaction = segv_handler; |
| sa.sa_flags = SA_NODEFER | SA_SIGINFO; |
| sigaction(SIGSEGV, &sa, NULL); |
| sigaction(SIGBUS, &sa, NULL); |
| } |
| |
| #define NONFAILING(...) \ |
| { \ |
| __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ |
| if (_setjmp(segv_env) == 0) { \ |
| __VA_ARGS__; \ |
| } \ |
| __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ |
| } |
| |
| static void sleep_ms(uint64_t ms) |
| { |
| usleep(ms * 1000); |
| } |
| |
| static uint64_t current_time_ms(void) |
| { |
| struct timespec ts; |
| if (clock_gettime(CLOCK_MONOTONIC, &ts)) |
| exit(1); |
| return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; |
| } |
| |
| static void use_temporary_dir(void) |
| { |
| char tmpdir_template[] = "./syzkaller.XXXXXX"; |
| char* tmpdir = mkdtemp(tmpdir_template); |
| if (!tmpdir) |
| exit(1); |
| if (chmod(tmpdir, 0777)) |
| exit(1); |
| if (chdir(tmpdir)) |
| exit(1); |
| } |
| |
| static void thread_start(void* (*fn)(void*), void* arg) |
| { |
| pthread_t th; |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setstacksize(&attr, 128 << 10); |
| int i; |
| for (i = 0; i < 100; i++) { |
| if (pthread_create(&th, &attr, fn, arg) == 0) { |
| pthread_attr_destroy(&attr); |
| return; |
| } |
| if (errno == EAGAIN) { |
| usleep(50); |
| continue; |
| } |
| break; |
| } |
| exit(1); |
| } |
| |
| typedef struct { |
| int state; |
| } event_t; |
| |
| static void event_init(event_t* ev) |
| { |
| ev->state = 0; |
| } |
| |
| static void event_reset(event_t* ev) |
| { |
| ev->state = 0; |
| } |
| |
| static void event_set(event_t* ev) |
| { |
| if (ev->state) |
| exit(1); |
| __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); |
| syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG); |
| } |
| |
| static void event_wait(event_t* ev) |
| { |
| while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) |
| syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); |
| } |
| |
| static int event_isset(event_t* ev) |
| { |
| return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); |
| } |
| |
| static int event_timedwait(event_t* ev, uint64_t timeout) |
| { |
| uint64_t start = current_time_ms(); |
| uint64_t now = start; |
| for (;;) { |
| uint64_t remain = timeout - (now - start); |
| struct timespec ts; |
| ts.tv_sec = remain / 1000; |
| ts.tv_nsec = (remain % 1000) * 1000 * 1000; |
| syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); |
| if (__atomic_load_n(&ev->state, __ATOMIC_RELAXED)) |
| return 1; |
| now = current_time_ms(); |
| if (now - start > timeout) |
| return 0; |
| } |
| } |
| |
| static bool write_file(const char* file, const char* what, ...) |
| { |
| char buf[1024]; |
| va_list args; |
| va_start(args, what); |
| vsnprintf(buf, sizeof(buf), what, args); |
| va_end(args); |
| buf[sizeof(buf) - 1] = 0; |
| int len = strlen(buf); |
| int fd = open(file, O_WRONLY | O_CLOEXEC); |
| if (fd == -1) |
| return false; |
| if (write(fd, buf, len) != len) { |
| int err = errno; |
| close(fd); |
| errno = err; |
| return false; |
| } |
| close(fd); |
| return true; |
| } |
| |
| static struct { |
| char* pos; |
| int nesting; |
| struct nlattr* nested[8]; |
| char buf[1024]; |
| } nlmsg; |
| |
| static void netlink_init(int typ, int flags, const void* data, int size) |
| { |
| memset(&nlmsg, 0, sizeof(nlmsg)); |
| struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg.buf; |
| hdr->nlmsg_type = typ; |
| hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; |
| memcpy(hdr + 1, data, size); |
| nlmsg.pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); |
| } |
| |
| static void netlink_attr(int typ, const void* data, int size) |
| { |
| struct nlattr* attr = (struct nlattr*)nlmsg.pos; |
| attr->nla_len = sizeof(*attr) + size; |
| attr->nla_type = typ; |
| memcpy(attr + 1, data, size); |
| nlmsg.pos += NLMSG_ALIGN(attr->nla_len); |
| } |
| |
| static void netlink_nest(int typ) |
| { |
| struct nlattr* attr = (struct nlattr*)nlmsg.pos; |
| attr->nla_type = typ; |
| nlmsg.pos += sizeof(*attr); |
| nlmsg.nested[nlmsg.nesting++] = attr; |
| } |
| |
| static void netlink_done(void) |
| { |
| struct nlattr* attr = nlmsg.nested[--nlmsg.nesting]; |
| attr->nla_len = nlmsg.pos - (char*)attr; |
| } |
| |
| static int netlink_send(int sock) |
| { |
| if (nlmsg.pos > nlmsg.buf + sizeof(nlmsg.buf) || nlmsg.nesting) |
| exit(1); |
| struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg.buf; |
| hdr->nlmsg_len = nlmsg.pos - nlmsg.buf; |
| struct sockaddr_nl addr; |
| memset(&addr, 0, sizeof(addr)); |
| addr.nl_family = AF_NETLINK; |
| unsigned n = sendto(sock, nlmsg.buf, hdr->nlmsg_len, 0, |
| (struct sockaddr*)&addr, sizeof(addr)); |
| if (n != hdr->nlmsg_len) |
| exit(1); |
| n = recv(sock, nlmsg.buf, sizeof(nlmsg.buf), 0); |
| if (n < sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr)) |
| exit(1); |
| if (hdr->nlmsg_type != NLMSG_ERROR) |
| exit(1); |
| return -((struct nlmsgerr*)(hdr + 1))->error; |
| } |
| |
| static void netlink_add_device_impl(const char* type, const char* name) |
| { |
| struct ifinfomsg hdr; |
| memset(&hdr, 0, sizeof(hdr)); |
| netlink_init(RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr, sizeof(hdr)); |
| if (name) |
| netlink_attr(IFLA_IFNAME, name, strlen(name)); |
| netlink_nest(IFLA_LINKINFO); |
| netlink_attr(IFLA_INFO_KIND, type, strlen(type)); |
| } |
| |
| static void netlink_add_device(int sock, const char* type, const char* name) |
| { |
| netlink_add_device_impl(type, name); |
| netlink_done(); |
| int err = netlink_send(sock); |
| (void)err; |
| } |
| |
| static void netlink_add_veth(int sock, const char* name, const char* peer) |
| { |
| netlink_add_device_impl("veth", name); |
| netlink_nest(IFLA_INFO_DATA); |
| netlink_nest(VETH_INFO_PEER); |
| nlmsg.pos += sizeof(struct ifinfomsg); |
| netlink_attr(IFLA_IFNAME, peer, strlen(peer)); |
| netlink_done(); |
| netlink_done(); |
| netlink_done(); |
| int err = netlink_send(sock); |
| (void)err; |
| } |
| |
| static void netlink_add_hsr(int sock, const char* name, const char* slave1, |
| const char* slave2) |
| { |
| netlink_add_device_impl("hsr", name); |
| netlink_nest(IFLA_INFO_DATA); |
| int ifindex1 = if_nametoindex(slave1); |
| netlink_attr(IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1)); |
| int ifindex2 = if_nametoindex(slave2); |
| netlink_attr(IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2)); |
| netlink_done(); |
| netlink_done(); |
| int err = netlink_send(sock); |
| (void)err; |
| } |
| |
| static void netlink_device_change(int sock, const char* name, bool up, |
| const char* master, const void* mac, |
| int macsize) |
| { |
| struct ifinfomsg hdr; |
| memset(&hdr, 0, sizeof(hdr)); |
| if (up) |
| hdr.ifi_flags = hdr.ifi_change = IFF_UP; |
| netlink_init(RTM_NEWLINK, 0, &hdr, sizeof(hdr)); |
| netlink_attr(IFLA_IFNAME, name, strlen(name)); |
| if (master) { |
| int ifindex = if_nametoindex(master); |
| netlink_attr(IFLA_MASTER, &ifindex, sizeof(ifindex)); |
| } |
| if (macsize) |
| netlink_attr(IFLA_ADDRESS, mac, macsize); |
| int err = netlink_send(sock); |
| (void)err; |
| } |
| |
| static int netlink_add_addr(int sock, const char* dev, const void* addr, |
| int addrsize) |
| { |
| struct ifaddrmsg hdr; |
| memset(&hdr, 0, sizeof(hdr)); |
| hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6; |
| hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120; |
| hdr.ifa_scope = RT_SCOPE_UNIVERSE; |
| hdr.ifa_index = if_nametoindex(dev); |
| netlink_init(RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr, sizeof(hdr)); |
| netlink_attr(IFA_LOCAL, addr, addrsize); |
| netlink_attr(IFA_ADDRESS, addr, addrsize); |
| return netlink_send(sock); |
| } |
| |
| static void netlink_add_addr4(int sock, const char* dev, const char* addr) |
| { |
| struct in_addr in_addr; |
| inet_pton(AF_INET, addr, &in_addr); |
| int err = netlink_add_addr(sock, dev, &in_addr, sizeof(in_addr)); |
| (void)err; |
| } |
| |
| static void netlink_add_addr6(int sock, const char* dev, const char* addr) |
| { |
| struct in6_addr in6_addr; |
| inet_pton(AF_INET6, addr, &in6_addr); |
| int err = netlink_add_addr(sock, dev, &in6_addr, sizeof(in6_addr)); |
| (void)err; |
| } |
| |
| static void netlink_add_neigh(int sock, const char* name, const void* addr, |
| int addrsize, const void* mac, int macsize) |
| { |
| struct ndmsg hdr; |
| memset(&hdr, 0, sizeof(hdr)); |
| hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6; |
| hdr.ndm_ifindex = if_nametoindex(name); |
| hdr.ndm_state = NUD_PERMANENT; |
| netlink_init(RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr, sizeof(hdr)); |
| netlink_attr(NDA_DST, addr, addrsize); |
| netlink_attr(NDA_LLADDR, mac, macsize); |
| int err = netlink_send(sock); |
| (void)err; |
| } |
| |
| static int tunfd = -1; |
| static int tun_frags_enabled; |
| #define SYZ_TUN_MAX_PACKET_SIZE 1000 |
| |
| #define TUN_IFACE "syz_tun" |
| |
| #define LOCAL_MAC 0xaaaaaaaaaaaa |
| #define REMOTE_MAC 0xaaaaaaaaaabb |
| |
| #define LOCAL_IPV4 "172.20.20.170" |
| #define REMOTE_IPV4 "172.20.20.187" |
| |
| #define LOCAL_IPV6 "fe80::aa" |
| #define REMOTE_IPV6 "fe80::bb" |
| |
| #define IFF_NAPI 0x0010 |
| #define IFF_NAPI_FRAGS 0x0020 |
| |
| static void initialize_tun(void) |
| { |
| tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK); |
| if (tunfd == -1) { |
| printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n"); |
| printf("otherwise fuzzing or reproducing might not work as intended\n"); |
| return; |
| } |
| const int kTunFd = 240; |
| if (dup2(tunfd, kTunFd) < 0) |
| exit(1); |
| close(tunfd); |
| tunfd = kTunFd; |
| struct ifreq ifr; |
| memset(&ifr, 0, sizeof(ifr)); |
| strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ); |
| ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS; |
| if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) { |
| ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) |
| exit(1); |
| } |
| if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0) |
| exit(1); |
| tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0; |
| char sysctl[64]; |
| sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE); |
| write_file(sysctl, "0"); |
| sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE); |
| write_file(sysctl, "0"); |
| int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); |
| if (sock == -1) |
| exit(1); |
| netlink_add_addr4(sock, TUN_IFACE, LOCAL_IPV4); |
| netlink_add_addr6(sock, TUN_IFACE, LOCAL_IPV6); |
| uint64_t macaddr = REMOTE_MAC; |
| struct in_addr in_addr; |
| inet_pton(AF_INET, REMOTE_IPV4, &in_addr); |
| netlink_add_neigh(sock, TUN_IFACE, &in_addr, sizeof(in_addr), &macaddr, |
| ETH_ALEN); |
| struct in6_addr in6_addr; |
| inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr); |
| netlink_add_neigh(sock, TUN_IFACE, &in6_addr, sizeof(in6_addr), &macaddr, |
| ETH_ALEN); |
| macaddr = LOCAL_MAC; |
| netlink_device_change(sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN); |
| close(sock); |
| } |
| |
| #define DEV_IPV4 "172.20.20.%d" |
| #define DEV_IPV6 "fe80::%02hx" |
| #define DEV_MAC 0x00aaaaaaaaaa |
| static void initialize_netdevices(void) |
| { |
| char netdevsim[16]; |
| sprintf(netdevsim, "netdevsim%d", (int)procid); |
| struct { |
| const char* type; |
| const char* dev; |
| } devtypes[] = { |
| {"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"}, |
| {"vcan", "vcan0"}, {"bond", "bond0"}, |
| {"team", "team0"}, {"dummy", "dummy0"}, |
| {"nlmon", "nlmon0"}, {"caif", "caif0"}, |
| {"batadv", "batadv0"}, {"vxcan", "vxcan1"}, |
| {"netdevsim", netdevsim}, {"veth", 0}, |
| }; |
| const char* devmasters[] = {"bridge", "bond", "team"}; |
| struct { |
| const char* name; |
| int macsize; |
| bool noipv6; |
| } devices[] = { |
| {"lo", ETH_ALEN}, |
| {"sit0", 0}, |
| {"bridge0", ETH_ALEN}, |
| {"vcan0", 0, true}, |
| {"tunl0", 0}, |
| {"gre0", 0}, |
| {"gretap0", ETH_ALEN}, |
| {"ip_vti0", 0}, |
| {"ip6_vti0", 0}, |
| {"ip6tnl0", 0}, |
| {"ip6gre0", 0}, |
| {"ip6gretap0", ETH_ALEN}, |
| {"erspan0", ETH_ALEN}, |
| {"bond0", ETH_ALEN}, |
| {"veth0", ETH_ALEN}, |
| {"veth1", ETH_ALEN}, |
| {"team0", ETH_ALEN}, |
| {"veth0_to_bridge", ETH_ALEN}, |
| {"veth1_to_bridge", ETH_ALEN}, |
| {"veth0_to_bond", ETH_ALEN}, |
| {"veth1_to_bond", ETH_ALEN}, |
| {"veth0_to_team", ETH_ALEN}, |
| {"veth1_to_team", ETH_ALEN}, |
| {"veth0_to_hsr", ETH_ALEN}, |
| {"veth1_to_hsr", ETH_ALEN}, |
| {"hsr0", 0}, |
| {"dummy0", ETH_ALEN}, |
| {"nlmon0", 0}, |
| {"vxcan1", 0, true}, |
| {"caif0", ETH_ALEN}, |
| {"batadv0", ETH_ALEN}, |
| {netdevsim, ETH_ALEN}, |
| }; |
| int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); |
| if (sock == -1) |
| exit(1); |
| unsigned i; |
| for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) |
| netlink_add_device(sock, devtypes[i].type, devtypes[i].dev); |
| for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) { |
| char master[32], slave0[32], veth0[32], slave1[32], veth1[32]; |
| sprintf(slave0, "%s_slave_0", devmasters[i]); |
| sprintf(veth0, "veth0_to_%s", devmasters[i]); |
| netlink_add_veth(sock, slave0, veth0); |
| sprintf(slave1, "%s_slave_1", devmasters[i]); |
| sprintf(veth1, "veth1_to_%s", devmasters[i]); |
| netlink_add_veth(sock, slave1, veth1); |
| sprintf(master, "%s0", devmasters[i]); |
| netlink_device_change(sock, slave0, false, master, 0, 0); |
| netlink_device_change(sock, slave1, false, master, 0, 0); |
| } |
| netlink_device_change(sock, "bridge_slave_0", true, 0, 0, 0); |
| netlink_device_change(sock, "bridge_slave_1", true, 0, 0, 0); |
| netlink_add_veth(sock, "hsr_slave_0", "veth0_to_hsr"); |
| netlink_add_veth(sock, "hsr_slave_1", "veth1_to_hsr"); |
| netlink_add_hsr(sock, "hsr0", "hsr_slave_0", "hsr_slave_1"); |
| netlink_device_change(sock, "hsr_slave_0", true, 0, 0, 0); |
| netlink_device_change(sock, "hsr_slave_1", true, 0, 0, 0); |
| for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) { |
| char addr[32]; |
| sprintf(addr, DEV_IPV4, i + 10); |
| netlink_add_addr4(sock, devices[i].name, addr); |
| if (!devices[i].noipv6) { |
| sprintf(addr, DEV_IPV6, i + 10); |
| netlink_add_addr6(sock, devices[i].name, addr); |
| } |
| uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40); |
| netlink_device_change(sock, devices[i].name, true, 0, &macaddr, |
| devices[i].macsize); |
| } |
| close(sock); |
| } |
| static void initialize_netdevices_init(void) |
| { |
| int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); |
| if (sock == -1) |
| exit(1); |
| struct { |
| const char* type; |
| int macsize; |
| bool noipv6; |
| bool noup; |
| } devtypes[] = { |
| {"nr", 7, true}, |
| {"rose", 5, true, true}, |
| }; |
| unsigned i; |
| for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) { |
| char dev[32], addr[32]; |
| sprintf(dev, "%s%d", devtypes[i].type, (int)procid); |
| sprintf(addr, "172.30.%d.%d", i, (int)procid + 1); |
| netlink_add_addr4(sock, dev, addr); |
| if (!devtypes[i].noipv6) { |
| sprintf(addr, "fe88::%02hx:%02hx", i, (int)procid + 1); |
| netlink_add_addr6(sock, dev, addr); |
| } |
| int macsize = devtypes[i].macsize; |
| uint64_t macaddr = 0xbbbbbb + |
| ((unsigned long long)i << (8 * (macsize - 2))) + |
| (procid << (8 * (macsize - 1))); |
| netlink_device_change(sock, dev, !devtypes[i].noup, 0, &macaddr, macsize); |
| } |
| close(sock); |
| } |
| |
| static int read_tun(char* data, int size) |
| { |
| if (tunfd < 0) |
| return -1; |
| int rv = read(tunfd, data, size); |
| if (rv < 0) { |
| if (errno == EAGAIN) |
| return -1; |
| if (errno == EBADFD) |
| return -1; |
| exit(1); |
| } |
| return rv; |
| } |
| |
| #define MAX_FRAGS 4 |
| struct vnet_fragmentation { |
| uint32_t full; |
| uint32_t count; |
| uint32_t frags[MAX_FRAGS]; |
| }; |
| |
| static long syz_emit_ethernet(long a0, long a1, long a2) |
| { |
| if (tunfd < 0) |
| return (uintptr_t)-1; |
| uint32_t length = a0; |
| char* data = (char*)a1; |
| struct vnet_fragmentation* frags = (struct vnet_fragmentation*)a2; |
| struct iovec vecs[MAX_FRAGS + 1]; |
| uint32_t nfrags = 0; |
| if (!tun_frags_enabled || frags == NULL) { |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = length; |
| nfrags++; |
| } else { |
| bool full = true; |
| uint32_t i, count = 0; |
| NONFAILING(full = frags->full); |
| NONFAILING(count = frags->count); |
| if (count > MAX_FRAGS) |
| count = MAX_FRAGS; |
| for (i = 0; i < count && length != 0; i++) { |
| uint32_t size = 0; |
| NONFAILING(size = frags->frags[i]); |
| if (size > length) |
| size = length; |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = size; |
| nfrags++; |
| data += size; |
| length -= size; |
| } |
| if (length != 0 && (full || nfrags == 0)) { |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = length; |
| nfrags++; |
| } |
| } |
| return writev(tunfd, vecs, nfrags); |
| } |
| |
| static void flush_tun() |
| { |
| char data[SYZ_TUN_MAX_PACKET_SIZE]; |
| while (read_tun(&data[0], sizeof(data)) != -1) { |
| } |
| } |
| |
| static long syz_genetlink_get_family_id(long name) |
| { |
| char buf[512] = {0}; |
| struct nlmsghdr* hdr = (struct nlmsghdr*)buf; |
| struct genlmsghdr* genlhdr = (struct genlmsghdr*)NLMSG_DATA(hdr); |
| struct nlattr* attr = (struct nlattr*)(genlhdr + 1); |
| hdr->nlmsg_len = |
| sizeof(*hdr) + sizeof(*genlhdr) + sizeof(*attr) + GENL_NAMSIZ; |
| hdr->nlmsg_type = GENL_ID_CTRL; |
| hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; |
| genlhdr->cmd = CTRL_CMD_GETFAMILY; |
| attr->nla_type = CTRL_ATTR_FAMILY_NAME; |
| attr->nla_len = sizeof(*attr) + GENL_NAMSIZ; |
| NONFAILING(strncpy((char*)(attr + 1), (char*)name, GENL_NAMSIZ)); |
| struct iovec iov = {hdr, hdr->nlmsg_len}; |
| struct sockaddr_nl addr = {0}; |
| addr.nl_family = AF_NETLINK; |
| int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); |
| if (fd == -1) { |
| return -1; |
| } |
| struct msghdr msg = {&addr, sizeof(addr), &iov, 1, NULL, 0, 0}; |
| if (sendmsg(fd, &msg, 0) == -1) { |
| close(fd); |
| return -1; |
| } |
| ssize_t n = recv(fd, buf, sizeof(buf), 0); |
| close(fd); |
| if (n <= 0) { |
| return -1; |
| } |
| if (hdr->nlmsg_type != GENL_ID_CTRL) { |
| return -1; |
| } |
| for (; (char*)attr < buf + n; |
| attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { |
| if (attr->nla_type == CTRL_ATTR_FAMILY_ID) |
| return *(uint16_t*)(attr + 1); |
| } |
| return -1; |
| } |
| |
| #define XT_TABLE_SIZE 1536 |
| #define XT_MAX_ENTRIES 10 |
| |
| struct xt_counters { |
| uint64_t pcnt, bcnt; |
| }; |
| |
| struct ipt_getinfo { |
| char name[32]; |
| unsigned int valid_hooks; |
| unsigned int hook_entry[5]; |
| unsigned int underflow[5]; |
| unsigned int num_entries; |
| unsigned int size; |
| }; |
| |
| struct ipt_get_entries { |
| char name[32]; |
| unsigned int size; |
| void* entrytable[XT_TABLE_SIZE / sizeof(void*)]; |
| }; |
| |
| struct ipt_replace { |
| char name[32]; |
| unsigned int valid_hooks; |
| unsigned int num_entries; |
| unsigned int size; |
| unsigned int hook_entry[5]; |
| unsigned int underflow[5]; |
| unsigned int num_counters; |
| struct xt_counters* counters; |
| char entrytable[XT_TABLE_SIZE]; |
| }; |
| |
| struct ipt_table_desc { |
| const char* name; |
| struct ipt_getinfo info; |
| struct ipt_replace replace; |
| }; |
| |
| static struct ipt_table_desc ipv4_tables[] = { |
| {.name = "filter"}, {.name = "nat"}, {.name = "mangle"}, |
| {.name = "raw"}, {.name = "security"}, |
| }; |
| |
| static struct ipt_table_desc ipv6_tables[] = { |
| {.name = "filter"}, {.name = "nat"}, {.name = "mangle"}, |
| {.name = "raw"}, {.name = "security"}, |
| }; |
| |
| #define IPT_BASE_CTL 64 |
| #define IPT_SO_SET_REPLACE (IPT_BASE_CTL) |
| #define IPT_SO_GET_INFO (IPT_BASE_CTL) |
| #define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1) |
| |
| struct arpt_getinfo { |
| char name[32]; |
| unsigned int valid_hooks; |
| unsigned int hook_entry[3]; |
| unsigned int underflow[3]; |
| unsigned int num_entries; |
| unsigned int size; |
| }; |
| |
| struct arpt_get_entries { |
| char name[32]; |
| unsigned int size; |
| void* entrytable[XT_TABLE_SIZE / sizeof(void*)]; |
| }; |
| |
| struct arpt_replace { |
| char name[32]; |
| unsigned int valid_hooks; |
| unsigned int num_entries; |
| unsigned int size; |
| unsigned int hook_entry[3]; |
| unsigned int underflow[3]; |
| unsigned int num_counters; |
| struct xt_counters* counters; |
| char entrytable[XT_TABLE_SIZE]; |
| }; |
| |
| struct arpt_table_desc { |
| const char* name; |
| struct arpt_getinfo info; |
| struct arpt_replace replace; |
| }; |
| |
| static struct arpt_table_desc arpt_tables[] = { |
| {.name = "filter"}, |
| }; |
| |
| #define ARPT_BASE_CTL 96 |
| #define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL) |
| #define ARPT_SO_GET_INFO (ARPT_BASE_CTL) |
| #define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1) |
| |
| static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables, |
| int family, int level) |
| { |
| struct ipt_get_entries entries; |
| socklen_t optlen; |
| int fd, i; |
| fd = socket(family, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < num_tables; i++) { |
| struct ipt_table_desc* table = &tables[i]; |
| strcpy(table->info.name, table->name); |
| strcpy(table->replace.name, table->name); |
| optlen = sizeof(table->info); |
| if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) { |
| switch (errno) { |
| case EPERM: |
| case ENOENT: |
| case ENOPROTOOPT: |
| continue; |
| } |
| exit(1); |
| } |
| if (table->info.size > sizeof(table->replace.entrytable)) |
| exit(1); |
| if (table->info.num_entries > XT_MAX_ENTRIES) |
| exit(1); |
| memset(&entries, 0, sizeof(entries)); |
| strcpy(entries.name, table->name); |
| entries.size = table->info.size; |
| optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size; |
| if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen)) |
| exit(1); |
| table->replace.valid_hooks = table->info.valid_hooks; |
| table->replace.num_entries = table->info.num_entries; |
| table->replace.size = table->info.size; |
| memcpy(table->replace.hook_entry, table->info.hook_entry, |
| sizeof(table->replace.hook_entry)); |
| memcpy(table->replace.underflow, table->info.underflow, |
| sizeof(table->replace.underflow)); |
| memcpy(table->replace.entrytable, entries.entrytable, table->info.size); |
| } |
| close(fd); |
| } |
| |
| static void reset_iptables(struct ipt_table_desc* tables, int num_tables, |
| int family, int level) |
| { |
| struct xt_counters counters[XT_MAX_ENTRIES]; |
| struct ipt_get_entries entries; |
| struct ipt_getinfo info; |
| socklen_t optlen; |
| int fd, i; |
| fd = socket(family, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < num_tables; i++) { |
| struct ipt_table_desc* table = &tables[i]; |
| if (table->info.valid_hooks == 0) |
| continue; |
| memset(&info, 0, sizeof(info)); |
| strcpy(info.name, table->name); |
| optlen = sizeof(info); |
| if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen)) |
| exit(1); |
| if (memcmp(&table->info, &info, sizeof(table->info)) == 0) { |
| memset(&entries, 0, sizeof(entries)); |
| strcpy(entries.name, table->name); |
| entries.size = table->info.size; |
| optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size; |
| if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen)) |
| exit(1); |
| if (memcmp(table->replace.entrytable, entries.entrytable, |
| table->info.size) == 0) |
| continue; |
| } |
| table->replace.num_counters = info.num_entries; |
| table->replace.counters = counters; |
| optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) + |
| table->replace.size; |
| if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen)) |
| exit(1); |
| } |
| close(fd); |
| } |
| |
| static void checkpoint_arptables(void) |
| { |
| struct arpt_get_entries entries; |
| socklen_t optlen; |
| unsigned i; |
| int fd; |
| fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) { |
| struct arpt_table_desc* table = &arpt_tables[i]; |
| strcpy(table->info.name, table->name); |
| strcpy(table->replace.name, table->name); |
| optlen = sizeof(table->info); |
| if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) { |
| switch (errno) { |
| case EPERM: |
| case ENOENT: |
| case ENOPROTOOPT: |
| continue; |
| } |
| exit(1); |
| } |
| if (table->info.size > sizeof(table->replace.entrytable)) |
| exit(1); |
| if (table->info.num_entries > XT_MAX_ENTRIES) |
| exit(1); |
| memset(&entries, 0, sizeof(entries)); |
| strcpy(entries.name, table->name); |
| entries.size = table->info.size; |
| optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size; |
| if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen)) |
| exit(1); |
| table->replace.valid_hooks = table->info.valid_hooks; |
| table->replace.num_entries = table->info.num_entries; |
| table->replace.size = table->info.size; |
| memcpy(table->replace.hook_entry, table->info.hook_entry, |
| sizeof(table->replace.hook_entry)); |
| memcpy(table->replace.underflow, table->info.underflow, |
| sizeof(table->replace.underflow)); |
| memcpy(table->replace.entrytable, entries.entrytable, table->info.size); |
| } |
| close(fd); |
| } |
| |
| static void reset_arptables() |
| { |
| struct xt_counters counters[XT_MAX_ENTRIES]; |
| struct arpt_get_entries entries; |
| struct arpt_getinfo info; |
| socklen_t optlen; |
| unsigned i; |
| int fd; |
| fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) { |
| struct arpt_table_desc* table = &arpt_tables[i]; |
| if (table->info.valid_hooks == 0) |
| continue; |
| memset(&info, 0, sizeof(info)); |
| strcpy(info.name, table->name); |
| optlen = sizeof(info); |
| if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen)) |
| exit(1); |
| if (memcmp(&table->info, &info, sizeof(table->info)) == 0) { |
| memset(&entries, 0, sizeof(entries)); |
| strcpy(entries.name, table->name); |
| entries.size = table->info.size; |
| optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size; |
| if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen)) |
| exit(1); |
| if (memcmp(table->replace.entrytable, entries.entrytable, |
| table->info.size) == 0) |
| continue; |
| } else { |
| } |
| table->replace.num_counters = info.num_entries; |
| table->replace.counters = counters; |
| optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) + |
| table->replace.size; |
| if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen)) |
| exit(1); |
| } |
| close(fd); |
| } |
| |
| #define NF_BR_NUMHOOKS 6 |
| #define EBT_TABLE_MAXNAMELEN 32 |
| #define EBT_CHAIN_MAXNAMELEN 32 |
| #define EBT_BASE_CTL 128 |
| #define EBT_SO_SET_ENTRIES (EBT_BASE_CTL) |
| #define EBT_SO_GET_INFO (EBT_BASE_CTL) |
| #define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1) |
| #define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1) |
| #define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1) |
| |
| struct ebt_replace { |
| char name[EBT_TABLE_MAXNAMELEN]; |
| unsigned int valid_hooks; |
| unsigned int nentries; |
| unsigned int entries_size; |
| struct ebt_entries* hook_entry[NF_BR_NUMHOOKS]; |
| unsigned int num_counters; |
| struct ebt_counter* counters; |
| char* entries; |
| }; |
| |
| struct ebt_entries { |
| unsigned int distinguisher; |
| char name[EBT_CHAIN_MAXNAMELEN]; |
| unsigned int counter_offset; |
| int policy; |
| unsigned int nentries; |
| char data[0] __attribute__((aligned(__alignof__(struct ebt_replace)))); |
| }; |
| |
| struct ebt_table_desc { |
| const char* name; |
| struct ebt_replace replace; |
| char entrytable[XT_TABLE_SIZE]; |
| }; |
| |
| static struct ebt_table_desc ebt_tables[] = { |
| {.name = "filter"}, |
| {.name = "nat"}, |
| {.name = "broute"}, |
| }; |
| |
| static void checkpoint_ebtables(void) |
| { |
| socklen_t optlen; |
| unsigned i; |
| int fd; |
| fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) { |
| struct ebt_table_desc* table = &ebt_tables[i]; |
| strcpy(table->replace.name, table->name); |
| optlen = sizeof(table->replace); |
| if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace, |
| &optlen)) { |
| switch (errno) { |
| case EPERM: |
| case ENOENT: |
| case ENOPROTOOPT: |
| continue; |
| } |
| exit(1); |
| } |
| if (table->replace.entries_size > sizeof(table->entrytable)) |
| exit(1); |
| table->replace.num_counters = 0; |
| table->replace.entries = table->entrytable; |
| optlen = sizeof(table->replace) + table->replace.entries_size; |
| if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace, |
| &optlen)) |
| exit(1); |
| } |
| close(fd); |
| } |
| |
| static void reset_ebtables() |
| { |
| struct ebt_replace replace; |
| char entrytable[XT_TABLE_SIZE]; |
| socklen_t optlen; |
| unsigned i, j, h; |
| int fd; |
| fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| if (fd == -1) { |
| switch (errno) { |
| case EAFNOSUPPORT: |
| case ENOPROTOOPT: |
| return; |
| } |
| exit(1); |
| } |
| for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) { |
| struct ebt_table_desc* table = &ebt_tables[i]; |
| if (table->replace.valid_hooks == 0) |
| continue; |
| memset(&replace, 0, sizeof(replace)); |
| strcpy(replace.name, table->name); |
| optlen = sizeof(replace); |
| if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen)) |
| exit(1); |
| replace.num_counters = 0; |
| table->replace.entries = 0; |
| for (h = 0; h < NF_BR_NUMHOOKS; h++) |
| table->replace.hook_entry[h] = 0; |
| if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) { |
| memset(&entrytable, 0, sizeof(entrytable)); |
| replace.entries = entrytable; |
| optlen = sizeof(replace) + replace.entries_size; |
| if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen)) |
| exit(1); |
| if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0) |
| continue; |
| } |
| for (j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) { |
| if (table->replace.valid_hooks & (1 << h)) { |
| table->replace.hook_entry[h] = |
| (struct ebt_entries*)table->entrytable + j; |
| j++; |
| } |
| } |
| table->replace.entries = table->entrytable; |
| optlen = sizeof(table->replace) + table->replace.entries_size; |
| if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen)) |
| exit(1); |
| } |
| close(fd); |
| } |
| |
| static void checkpoint_net_namespace(void) |
| { |
| checkpoint_ebtables(); |
| checkpoint_arptables(); |
| checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]), |
| AF_INET, SOL_IP); |
| checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]), |
| AF_INET6, SOL_IPV6); |
| } |
| |
| static void reset_net_namespace(void) |
| { |
| reset_ebtables(); |
| reset_arptables(); |
| reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]), |
| AF_INET, SOL_IP); |
| reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]), |
| AF_INET6, SOL_IPV6); |
| } |
| |
| static void setup_cgroups() |
| { |
| if (mkdir("/syzcgroup", 0777)) { |
| } |
| if (mkdir("/syzcgroup/unified", 0777)) { |
| } |
| if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) { |
| } |
| if (chmod("/syzcgroup/unified", 0777)) { |
| } |
| write_file("/syzcgroup/unified/cgroup.subtree_control", |
| "+cpu +memory +io +pids +rdma"); |
| if (mkdir("/syzcgroup/cpu", 0777)) { |
| } |
| if (mount("none", "/syzcgroup/cpu", "cgroup", 0, |
| "cpuset,cpuacct,perf_event,hugetlb")) { |
| } |
| write_file("/syzcgroup/cpu/cgroup.clone_children", "1"); |
| if (chmod("/syzcgroup/cpu", 0777)) { |
| } |
| if (mkdir("/syzcgroup/net", 0777)) { |
| } |
| if (mount("none", "/syzcgroup/net", "cgroup", 0, |
| "net_cls,net_prio,devices,freezer")) { |
| } |
| if (chmod("/syzcgroup/net", 0777)) { |
| } |
| } |
| static void setup_binfmt_misc() |
| { |
| if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) { |
| } |
| write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:"); |
| write_file("/proc/sys/fs/binfmt_misc/register", |
| ":syz1:M:1:\x02::./file0:POC"); |
| } |
| |
| static void setup_common() |
| { |
| if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { |
| } |
| setup_cgroups(); |
| setup_binfmt_misc(); |
| } |
| |
| static void loop(); |
| |
| static void sandbox_common() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| setsid(); |
| struct rlimit rlim; |
| rlim.rlim_cur = rlim.rlim_max = (200 << 20); |
| setrlimit(RLIMIT_AS, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 32 << 20; |
| setrlimit(RLIMIT_MEMLOCK, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 136 << 20; |
| setrlimit(RLIMIT_FSIZE, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 1 << 20; |
| setrlimit(RLIMIT_STACK, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 0; |
| setrlimit(RLIMIT_CORE, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 256; |
| setrlimit(RLIMIT_NOFILE, &rlim); |
| if (unshare(CLONE_NEWNS)) { |
| } |
| if (unshare(CLONE_NEWIPC)) { |
| } |
| if (unshare(0x02000000)) { |
| } |
| if (unshare(CLONE_NEWUTS)) { |
| } |
| if (unshare(CLONE_SYSVSEM)) { |
| } |
| typedef struct { |
| const char* name; |
| const char* value; |
| } sysctl_t; |
| static const sysctl_t sysctls[] = { |
| {"/proc/sys/kernel/shmmax", "16777216"}, |
| {"/proc/sys/kernel/shmall", "536870912"}, |
| {"/proc/sys/kernel/shmmni", "1024"}, |
| {"/proc/sys/kernel/msgmax", "8192"}, |
| {"/proc/sys/kernel/msgmni", "1024"}, |
| {"/proc/sys/kernel/msgmnb", "1024"}, |
| {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, |
| }; |
| unsigned i; |
| for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) |
| write_file(sysctls[i].name, sysctls[i].value); |
| } |
| |
| int wait_for_loop(int pid) |
| { |
| if (pid < 0) |
| exit(1); |
| int status = 0; |
| while (waitpid(-1, &status, __WALL) != pid) { |
| } |
| return WEXITSTATUS(status); |
| } |
| |
| static int do_sandbox_none(void) |
| { |
| if (unshare(CLONE_NEWPID)) { |
| } |
| int pid = fork(); |
| if (pid != 0) |
| return wait_for_loop(pid); |
| setup_common(); |
| sandbox_common(); |
| initialize_netdevices_init(); |
| if (unshare(CLONE_NEWNET)) { |
| } |
| initialize_tun(); |
| initialize_netdevices(); |
| loop(); |
| exit(1); |
| } |
| |
| #define FS_IOC_SETFLAGS _IOW('f', 2, long) |
| static void remove_dir(const char* dir) |
| { |
| DIR* dp; |
| struct dirent* ep; |
| int iter = 0; |
| retry: |
| while (umount2(dir, MNT_DETACH) == 0) { |
| } |
| dp = opendir(dir); |
| if (dp == NULL) { |
| if (errno == EMFILE) { |
| exit(1); |
| } |
| exit(1); |
| } |
| while ((ep = readdir(dp))) { |
| if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) |
| continue; |
| char filename[FILENAME_MAX]; |
| snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); |
| while (umount2(filename, MNT_DETACH) == 0) { |
| } |
| struct stat st; |
| if (lstat(filename, &st)) |
| exit(1); |
| if (S_ISDIR(st.st_mode)) { |
| remove_dir(filename); |
| continue; |
| } |
| int i; |
| for (i = 0;; i++) { |
| if (unlink(filename) == 0) |
| break; |
| if (errno == EPERM) { |
| int fd = open(filename, O_RDONLY); |
| if (fd != -1) { |
| long flags = 0; |
| if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) |
| close(fd); |
| continue; |
| } |
| } |
| if (errno == EROFS) { |
| break; |
| } |
| if (errno != EBUSY || i > 100) |
| exit(1); |
| if (umount2(filename, MNT_DETACH)) |
| exit(1); |
| } |
| } |
| closedir(dp); |
| int i; |
| for (i = 0;; i++) { |
| if (rmdir(dir) == 0) |
| break; |
| if (i < 100) { |
| if (errno == EPERM) { |
| int fd = open(dir, O_RDONLY); |
| if (fd != -1) { |
| long flags = 0; |
| if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) |
| close(fd); |
| continue; |
| } |
| } |
| if (errno == EROFS) { |
| break; |
| } |
| if (errno == EBUSY) { |
| if (umount2(dir, MNT_DETACH)) |
| exit(1); |
| continue; |
| } |
| if (errno == ENOTEMPTY) { |
| if (iter < 100) { |
| iter++; |
| goto retry; |
| } |
| } |
| } |
| exit(1); |
| } |
| } |
| |
| static void kill_and_wait(int pid, int* status) |
| { |
| kill(-pid, SIGKILL); |
| kill(pid, SIGKILL); |
| int i; |
| for (i = 0; i < 100; i++) { |
| if (waitpid(-1, status, WNOHANG | __WALL) == pid) |
| return; |
| usleep(1000); |
| } |
| DIR* dir = opendir("/sys/fs/fuse/connections"); |
| if (dir) { |
| for (;;) { |
| struct dirent* ent = readdir(dir); |
| if (!ent) |
| break; |
| if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) |
| continue; |
| char abort[300]; |
| snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", |
| ent->d_name); |
| int fd = open(abort, O_WRONLY); |
| if (fd == -1) { |
| continue; |
| } |
| if (write(fd, abort, 1) < 0) { |
| } |
| close(fd); |
| } |
| closedir(dir); |
| } else { |
| } |
| while (waitpid(-1, status, __WALL) != pid) { |
| } |
| } |
| |
| #define SYZ_HAVE_SETUP_LOOP 1 |
| static void setup_loop() |
| { |
| int pid = getpid(); |
| char cgroupdir[64]; |
| char file[128]; |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid); |
| if (mkdir(cgroupdir, 0777)) { |
| } |
| snprintf(file, sizeof(file), "%s/pids.max", cgroupdir); |
| write_file(file, "32"); |
| snprintf(file, sizeof(file), "%s/memory.low", cgroupdir); |
| write_file(file, "%d", 298 << 20); |
| snprintf(file, sizeof(file), "%s/memory.high", cgroupdir); |
| write_file(file, "%d", 299 << 20); |
| snprintf(file, sizeof(file), "%s/memory.max", cgroupdir); |
| write_file(file, "%d", 300 << 20); |
| snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir); |
| write_file(file, "%d", pid); |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid); |
| if (mkdir(cgroupdir, 0777)) { |
| } |
| snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir); |
| write_file(file, "%d", pid); |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid); |
| if (mkdir(cgroupdir, 0777)) { |
| } |
| snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir); |
| write_file(file, "%d", pid); |
| checkpoint_net_namespace(); |
| } |
| |
| #define SYZ_HAVE_RESET_LOOP 1 |
| static void reset_loop() |
| { |
| reset_net_namespace(); |
| } |
| |
| #define SYZ_HAVE_SETUP_TEST 1 |
| static void setup_test() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| char cgroupdir[64]; |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid); |
| if (symlink(cgroupdir, "./cgroup")) { |
| } |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid); |
| if (symlink(cgroupdir, "./cgroup.cpu")) { |
| } |
| snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid); |
| if (symlink(cgroupdir, "./cgroup.net")) { |
| } |
| write_file("/proc/self/oom_score_adj", "1000"); |
| flush_tun(); |
| } |
| |
| #define SYZ_HAVE_RESET_TEST 1 |
| static void reset_test() |
| { |
| int fd; |
| for (fd = 3; fd < 30; fd++) |
| close(fd); |
| } |
| |
| struct thread_t { |
| int created, call; |
| event_t ready, done; |
| }; |
| |
| static struct thread_t threads[16]; |
| static void execute_call(int call); |
| static int running; |
| |
| static void* thr(void* arg) |
| { |
| struct thread_t* th = (struct thread_t*)arg; |
| for (;;) { |
| event_wait(&th->ready); |
| event_reset(&th->ready); |
| execute_call(th->call); |
| __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); |
| event_set(&th->done); |
| } |
| return 0; |
| } |
| |
| static void execute_one(void) |
| { |
| int i, call, thread; |
| int collide = 0; |
| again: |
| for (call = 0; call < 159; call++) { |
| for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); |
| thread++) { |
| struct thread_t* th = &threads[thread]; |
| if (!th->created) { |
| th->created = 1; |
| event_init(&th->ready); |
| event_init(&th->done); |
| event_set(&th->done); |
| thread_start(thr, th); |
| } |
| if (!event_isset(&th->done)) |
| continue; |
| event_reset(&th->done); |
| th->call = call; |
| __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); |
| event_set(&th->ready); |
| if (collide && (call % 2) == 0) |
| break; |
| event_timedwait(&th->done, 45); |
| break; |
| } |
| } |
| for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) |
| sleep_ms(1); |
| if (!collide) { |
| collide = 1; |
| goto again; |
| } |
| } |
| |
| static void execute_one(void); |
| |
| #define WAIT_FLAGS __WALL |
| |
| static void loop(void) |
| { |
| setup_loop(); |
| int iter; |
| for (iter = 0;; iter++) { |
| char cwdbuf[32]; |
| sprintf(cwdbuf, "./%d", iter); |
| if (mkdir(cwdbuf, 0777)) |
| exit(1); |
| reset_loop(); |
| int pid = fork(); |
| if (pid < 0) |
| exit(1); |
| if (pid == 0) { |
| if (chdir(cwdbuf)) |
| exit(1); |
| setup_test(); |
| execute_one(); |
| reset_test(); |
| exit(0); |
| } |
| int status = 0; |
| uint64_t start = current_time_ms(); |
| for (;;) { |
| if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) |
| break; |
| sleep_ms(1); |
| if (current_time_ms() - start < 5 * 1000) |
| continue; |
| kill_and_wait(pid, &status); |
| break; |
| } |
| remove_dir(cwdbuf); |
| } |
| } |
| |
| uint64_t r[39] = {0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0x0, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff, |
| 0xffffffffffffffff}; |
| |
| void execute_call(int call) |
| { |
| long res; |
| switch (call) { |
| case 0: |
| res = syscall(__NR_socket, 0x11, 3, 0); |
| if (res != -1) |
| r[0] = res; |
| break; |
| case 1: |
| NONFAILING(*(uint64_t*)0x20000440 = 0x200000c0); |
| NONFAILING(*(uint16_t*)0x200000c0 = 0x103); |
| NONFAILING(*(uint32_t*)0x200000c4 = 0x14); |
| NONFAILING(*(uint32_t*)0x200000c8 = 0); |
| NONFAILING(*(uint32_t*)0x200000cc = 0); |
| NONFAILING(*(uint32_t*)0x20000448 = 0x80); |
| NONFAILING(*(uint64_t*)0x20000450 = 0x20000200); |
| NONFAILING(*(uint64_t*)0x20000200 = 0); |
| NONFAILING(*(uint64_t*)0x20000208 = 0); |
| NONFAILING(*(uint64_t*)0x20000458 = 1); |
| NONFAILING(*(uint64_t*)0x20000460 = 0); |
| NONFAILING(*(uint64_t*)0x20000468 = 0); |
| NONFAILING(*(uint32_t*)0x20000470 = 0); |
| syscall(__NR_sendmsg, r[0], 0x20000440, 0); |
| break; |
| case 2: |
| res = syscall(__NR_socket, 0xa, 5, 0x84); |
| if (res != -1) |
| r[1] = res; |
| break; |
| case 3: |
| NONFAILING(*(uint16_t*)0x200001c0 = 0xff0f); |
| NONFAILING(*(uint16_t*)0x200001c2 = 0); |
| NONFAILING(*(uint32_t*)0x200001c4 = 0); |
| NONFAILING(*(uint32_t*)0x200001c8 = 0); |
| NONFAILING(*(uint32_t*)0x200001cc = 0); |
| NONFAILING(*(uint32_t*)0x20000200 = 0x10); |
| syscall(__NR_getsockopt, r[1], 0x84, 0x7d, 0x200001c0, 0x20000200); |
| break; |
| case 4: |
| NONFAILING(memcpy((void*)0x20000040, |
| "\x0a\xf5\x1f\x02\x3c\x12\x3f\x31\x88\xa0\x70", 11)); |
| syscall(__NR_ioctl, -1, 0x1000008912, 0x20000040); |
| break; |
| case 5: |
| NONFAILING(*(uint16_t*)0x20000140 = 0x26); |
| NONFAILING(memcpy((void*)0x20000142, |
| "hash\000\000\000\000\000\000\000\000\000\000", 14)); |
| NONFAILING(*(uint32_t*)0x20000150 = 0); |
| NONFAILING(*(uint32_t*)0x20000154 = 0); |
| NONFAILING( |
| memcpy((void*)0x20000158, |
| "vmac64(aes-generic)" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", |
| 64)); |
| syscall(__NR_bind, -1, 0x20000140, 0x58); |
| break; |
| case 6: |
| NONFAILING(memcpy( |
| (void*)0x20000000, |
| "\x28\x54\x74\xda\xe6\xba\xdf\x3a\xb8\x5f\x04\x00\x00\x00\xd2\xeb", |
| 16)); |
| syscall(__NR_setsockopt, -1, 0x117, 1, 0x20000000, 0x10); |
| break; |
| case 7: |
| res = syscall(__NR_accept, -1, 0, 0); |
| if (res != -1) |
| r[2] = res; |
| break; |
| case 8: |
| NONFAILING(*(uint64_t*)0x20000100 = 0); |
| NONFAILING(*(uint32_t*)0x20000108 = 0); |
| NONFAILING(*(uint64_t*)0x20000110 = 0x200000c0); |
| NONFAILING(*(uint64_t*)0x200000c0 = 0x20000080); |
| NONFAILING(memcpy( |
| (void*)0x20000080, |
| "\x37\x38\x4b\xad\x0f\x9a\x26\x5d\xb4\x1f\x24\xc0\xf0\xa5\x7a\xc5\x2e" |
| "\x05\x75\x68\x11\xce\x7c\xed\x93\xb1\x00\xc0\x93\x01\xc9\x63", |
| 32)); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0x20); |
| NONFAILING(*(uint64_t*)0x20000118 = 1); |
| NONFAILING(*(uint64_t*)0x20000120 = 0); |
| NONFAILING(*(uint64_t*)0x20000128 = 0); |
| NONFAILING(*(uint32_t*)0x20000130 = 0); |
| syscall(__NR_sendmsg, r[2], 0x20000100, 0x8090); |
| break; |
| case 9: |
| syscall(__NR_sendto, r[2], 0x20000340, 0, 0x8000, 0, 0); |
| break; |
| case 10: |
| NONFAILING(*(uint64_t*)0x20003f00 = 0); |
| NONFAILING(*(uint32_t*)0x20003f08 = 0); |
| NONFAILING(*(uint64_t*)0x20003f10 = 0); |
| NONFAILING(*(uint64_t*)0x20003f18 = 0); |
| NONFAILING(*(uint64_t*)0x20003f20 = 0); |
| NONFAILING(*(uint64_t*)0x20003f28 = 0); |
| NONFAILING(*(uint32_t*)0x20003f30 = 0); |
| NONFAILING(*(uint64_t*)0x20003f38 = 0); |
| NONFAILING(*(uint32_t*)0x20003f40 = 0); |
| NONFAILING(*(uint64_t*)0x20003f48 = 0); |
| NONFAILING(*(uint64_t*)0x20003f50 = 0); |
| NONFAILING(*(uint64_t*)0x20003f58 = 0); |
| NONFAILING(*(uint64_t*)0x20003f60 = 0); |
| NONFAILING(*(uint32_t*)0x20003f68 = 0x40); |
| syscall(__NR_sendmmsg, r[2], 0x20003f00, 2, 0); |
| break; |
| case 11: |
| res = syscall(__NR_socket, 0xa, 5, 0x84); |
| if (res != -1) |
| r[3] = res; |
| break; |
| case 12: |
| NONFAILING(*(uint16_t*)0x200001c0 = 0xff0f); |
| NONFAILING(*(uint16_t*)0x200001c2 = 0); |
| NONFAILING(*(uint32_t*)0x200001c4 = 0); |
| NONFAILING(*(uint32_t*)0x200001c8 = 0); |
| NONFAILING(*(uint32_t*)0x200001cc = 0); |
| NONFAILING(*(uint32_t*)0x20000200 = 0x10); |
| syscall(__NR_getsockopt, r[3], 0x84, 0x7d, 0x200001c0, 0x20000200); |
| break; |
| case 13: |
| res = syscall(__NR_socket, 2, 2, 0x88); |
| if (res != -1) |
| r[4] = res; |
| break; |
| case 14: |
| NONFAILING(memcpy((void*)0x20000040, |
| "\x0a\xf5\x1f\x02\x3c\x12\x3f\x31\x88\xa0\x70", 11)); |
| syscall(__NR_ioctl, r[4], 0x1000008912, 0x20000040); |
| break; |
| case 15: |
| syscall(__NR_setsockopt, -1, 0x117, 1, 0, 0); |
| break; |
| case 16: |
| res = syscall(__NR_accept, -1, 0, 0); |
| if (res != -1) |
| r[5] = res; |
| break; |
| case 17: |
| NONFAILING(*(uint64_t*)0x20000100 = 0); |
| NONFAILING(*(uint32_t*)0x20000108 = 0); |
| NONFAILING(*(uint64_t*)0x20000110 = 0x200000c0); |
| NONFAILING(*(uint64_t*)0x200000c0 = 0x20000080); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0); |
| NONFAILING(*(uint64_t*)0x20000118 = 1); |
| NONFAILING(*(uint64_t*)0x20000120 = 0); |
| NONFAILING(*(uint64_t*)0x20000128 = 0); |
| NONFAILING(*(uint32_t*)0x20000130 = 0); |
| syscall(__NR_sendmsg, r[5], 0x20000100, 0x8090); |
| break; |
| case 18: |
| NONFAILING(memcpy( |
| (void*)0x20000340, |
| "\x4d\xad\x02\x69\x54\xa3\xb3\x11\xff\x38\x4b\x8b\xc4\x6e\x2b\x1a\x13" |
| "\x07\x1c\xc8\xb9\xe9\x95\xf3\xa7\x70\xdf\xe7\xe9\xd1\x01\x5b\xe1\xdf" |
| "\x34\x3a\x3f\x2c\xf6\xb6\xc6\x80\x3c\x5a\xe5\xa5\xc1\xbd\x8f\x2b\x8b" |
| "\x36\x58\x32\xc6\x73\xb7\x1a\x5c\xc7\x1d\x02\x70\x0d\x67\x5a\x68\x6c" |
| "\x3d\xab\x35\xa5\xc6\x18\x73\x67\x9f\x5c\x7f\xf8\x48\xac\xbc\x1d\x27" |
| "\x5c\xee\xae\x61\xfb\x51\x9d\x0d\x7a\x7d\x33\x25\xee\xa6\x3e\xf6\x68" |
| "\xc8\x8e\x33\x97\xcf\x76\x42\xe6\x52\x02\xb9", |
| 113)); |
| syscall(__NR_sendto, r[5], 0x20000340, 0x71, 0x8000, 0, 0); |
| break; |
| case 19: |
| NONFAILING(*(uint64_t*)0x20003f00 = 0); |
| NONFAILING(*(uint32_t*)0x20003f08 = 0); |
| NONFAILING(*(uint64_t*)0x20003f10 = 0); |
| NONFAILING(*(uint64_t*)0x20003f18 = 0); |
| NONFAILING(*(uint64_t*)0x20003f20 = 0); |
| NONFAILING(*(uint64_t*)0x20003f28 = 0); |
| NONFAILING(*(uint32_t*)0x20003f30 = 0); |
| NONFAILING(*(uint64_t*)0x20003f38 = 0); |
| NONFAILING(*(uint32_t*)0x20003f40 = 0); |
| NONFAILING(*(uint64_t*)0x20003f48 = 0); |
| NONFAILING(*(uint64_t*)0x20003f50 = 0); |
| NONFAILING(*(uint64_t*)0x20003f58 = 0); |
| NONFAILING(*(uint64_t*)0x20003f60 = 0); |
| NONFAILING(*(uint32_t*)0x20003f68 = 0x40); |
| syscall(__NR_sendmmsg, r[5], 0x20003f00, 2, 0); |
| break; |
| case 20: |
| syscall(__NR_mmap, 0x20000000, 0xff5000, 4, 0x5c832, -1, 0); |
| break; |
| case 21: |
| NONFAILING(memcpy((void*)0x200000c0, "memory.events\000", 14)); |
| syscall(__NR_openat, 0xffffff9c, 0x200000c0, 0x26e1, 0); |
| break; |
| case 22: |
| syscall(__NR_ioctl, -1, 0x1000008912, 0x20000040); |
| break; |
| case 23: |
| syscall(__NR_socket, 0xf, 3, 2); |
| break; |
| case 24: |
| res = syscall(__NR_socket, 0xa, 3, 1); |
| if (res != -1) |
| r[6] = res; |
| break; |
| case 25: |
| NONFAILING(memcpy( |
| (void*)0x20000380, |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", |
| 16)); |
| NONFAILING(*(uint8_t*)0x20000390 = 0xfe); |
| NONFAILING(*(uint8_t*)0x20000391 = 0x80); |
| NONFAILING(*(uint8_t*)0x20000392 = 0); |
| NONFAILING(*(uint8_t*)0x20000393 = 0); |
| NONFAILING(*(uint8_t*)0x20000394 = 0); |
| NONFAILING(*(uint8_t*)0x20000395 = 0); |
| NONFAILING(*(uint8_t*)0x20000396 = 0); |
| NONFAILING(*(uint8_t*)0x20000397 = 0); |
| NONFAILING(*(uint8_t*)0x20000398 = 0); |
| NONFAILING(*(uint8_t*)0x20000399 = 0); |
| NONFAILING(*(uint8_t*)0x2000039a = 0); |
| NONFAILING(*(uint8_t*)0x2000039b = 0); |
| NONFAILING(*(uint8_t*)0x2000039c = 0); |
| NONFAILING(*(uint8_t*)0x2000039d = 0); |
| NONFAILING(*(uint8_t*)0x2000039e = 0); |
| NONFAILING(*(uint8_t*)0x2000039f = 0xaa); |
| NONFAILING(*(uint16_t*)0x200003a0 = htobe16(0)); |
| NONFAILING(*(uint16_t*)0x200003a2 = htobe16(0)); |
| NONFAILING(*(uint16_t*)0x200003a4 = htobe16(0)); |
| NONFAILING(*(uint16_t*)0x200003a6 = htobe16(0)); |
| NONFAILING(*(uint16_t*)0x200003a8 = 0xa); |
| NONFAILING(*(uint8_t*)0x200003aa = 0); |
| NONFAILING(*(uint8_t*)0x200003ab = 0); |
| NONFAILING(*(uint8_t*)0x200003ac = 0); |
| NONFAILING(*(uint32_t*)0x200003b0 = 0); |
| NONFAILING(*(uint32_t*)0x200003b4 = 0); |
| NONFAILING(*(uint64_t*)0x200003b8 = 0); |
| NONFAILING(*(uint64_t*)0x200003c0 = 0); |
| NONFAILING(*(uint64_t*)0x200003c8 = 0); |
| NONFAILING(*(uint64_t*)0x200003d0 = 0); |
| NONFAILING(*(uint64_t*)0x200003d8 = 0); |
| NONFAILING(*(uint64_t*)0x200003e0 = 0); |
| NONFAILING(*(uint64_t*)0x200003e8 = 0); |
| NONFAILING(*(uint64_t*)0x200003f0 = 0); |
| NONFAILING(*(uint64_t*)0x200003f8 = 0); |
| NONFAILING(*(uint64_t*)0x20000400 = 0); |
| NONFAILING(*(uint64_t*)0x20000408 = 0); |
| NONFAILING(*(uint64_t*)0x20000410 = 0); |
| NONFAILING(*(uint32_t*)0x20000418 = 0); |
| NONFAILING(*(uint32_t*)0x2000041c = 0); |
| NONFAILING(*(uint8_t*)0x20000420 = 1); |
| NONFAILING(*(uint8_t*)0x20000421 = 0); |
| NONFAILING(*(uint8_t*)0x20000422 = 0); |
| NONFAILING(*(uint8_t*)0x20000423 = 0); |
| NONFAILING(*(uint32_t*)0x20000428 = htobe32(0x7f000001)); |
| NONFAILING(*(uint32_t*)0x20000438 = htobe32(0)); |
| NONFAILING(*(uint8_t*)0x2000043c = 0x33); |
| NONFAILING(*(uint16_t*)0x20000440 = 0); |
| NONFAILING(*(uint8_t*)0x20000444 = 0xfe); |
| NONFAILING(*(uint8_t*)0x20000445 = 0x80); |
| NONFAILING(*(uint8_t*)0x20000446 = 0); |
| NONFAILING(*(uint8_t*)0x20000447 = 0); |
| NONFAILING(*(uint8_t*)0x20000448 = 0); |
| NONFAILING(*(uint8_t*)0x20000449 = 0); |
| NONFAILING(*(uint8_t*)0x2000044a = 0); |
| NONFAILING(*(uint8_t*)0x2000044b = 0); |
| NONFAILING(*(uint8_t*)0x2000044c = 0); |
| NONFAILING(*(uint8_t*)0x2000044d = 0); |
| NONFAILING(*(uint8_t*)0x2000044e = 0); |
| NONFAILING(*(uint8_t*)0x2000044f = 0); |
| NONFAILING(*(uint8_t*)0x20000450 = 0); |
| NONFAILING(*(uint8_t*)0x20000451 = 0); |
| NONFAILING(*(uint8_t*)0x20000452 = 0); |
| NONFAILING(*(uint8_t*)0x20000453 = 0xaa); |
| NONFAILING(*(uint32_t*)0x20000454 = 0); |
| NONFAILING(*(uint8_t*)0x20000458 = 0); |
| NONFAILING(*(uint8_t*)0x20000459 = 0); |
| NONFAILING(*(uint8_t*)0x2000045a = 6); |
| NONFAILING(*(uint32_t*)0x2000045c = 0); |
| NONFAILING(*(uint32_t*)0x20000460 = 0); |
| NONFAILING(*(uint32_t*)0x20000464 = 0); |
| syscall(__NR_setsockopt, r[6], 0x29, 0x23, 0x20000380, 0xe8); |
| break; |
| case 26: |
| syscall(__NR_connect, r[6], 0, 0); |
| break; |
| case 27: |
| syscall(__NR_sendmmsg, r[6], 0x20007e00, 0xb2, 0); |
| break; |
| case 28: |
| res = syscall(__NR_socket, 0x11, 3, 0); |
| if (res != -1) |
| r[7] = res; |
| break; |
| case 29: |
| syscall(__NR_sendmsg, r[7], 0, 0); |
| break; |
| case 30: |
| res = syscall(__NR_socket, 0x26, 5, 0); |
| if (res != -1) |
| r[8] = res; |
| break; |
| case 31: |
| NONFAILING(*(uint16_t*)0x20000140 = 0x26); |
| NONFAILING(memcpy((void*)0x20000142, |
| "hash\000\000\000\000\000\000\000\000\000\000", 14)); |
| NONFAILING(*(uint32_t*)0x20000150 = 0); |
| NONFAILING(*(uint32_t*)0x20000154 = 0); |
| NONFAILING( |
| memcpy((void*)0x20000158, |
| "vmac64(aes-generic)" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" |
| "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", |
| 64)); |
| syscall(__NR_bind, r[8], 0x20000140, 0x58); |
| break; |
| case 32: |
| NONFAILING(memcpy( |
| (void*)0x20000000, |
| "\x28\x54\x74\xda\xe6\xba\xdf\x3a\xb8\x5f\x04\x00\x00\x00\xd2\xeb", |
| 16)); |
| syscall(__NR_setsockopt, r[8], 0x117, 1, 0x20000000, 0x10); |
| break; |
| case 33: |
| res = syscall(__NR_accept, r[8], 0, 0); |
| if (res != -1) |
| r[9] = res; |
| break; |
| case 34: |
| NONFAILING(*(uint64_t*)0x20000100 = 0); |
| NONFAILING(*(uint32_t*)0x20000108 = 0); |
| NONFAILING(*(uint64_t*)0x20000110 = 0x200000c0); |
| NONFAILING(*(uint64_t*)0x200000c0 = 0x20000080); |
| NONFAILING(memcpy( |
| (void*)0x20000080, |
| "\x37\x38\x4b\xad\x0f\x9a\x26\x5d\xb4\x1f\x24\xc0\xf0\xa5\x7a\xc5\x2e" |
| "\x05\x75\x68\x11\xce\x7c\xed\x93\xb1\x00\xc0\x93\x01\xc9\x63", |
| 32)); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0x20); |
| NONFAILING(*(uint64_t*)0x20000118 = 1); |
| NONFAILING(*(uint64_t*)0x20000120 = 0); |
| NONFAILING(*(uint64_t*)0x20000128 = 0); |
| NONFAILING(*(uint32_t*)0x20000130 = 0); |
| syscall(__NR_sendmsg, r[9], 0x20000100, 0x8090); |
| break; |
| case 35: |
| NONFAILING(memcpy( |
| (void*)0x20000340, |
| "\x4d\xad\x02\x69\x54\xa3\xb3\x11\xff\x38\x4b\x8b\xc4\x6e\x2b\x1a\x13" |
| "\x07\x1c\xc8\xb9\xe9\x95\xf3\xa7\x70\xdf\xe7\xe9\xd1\x01\x5b\xe1\xdf" |
| "\x34\x3a\x3f\x2c\xf6\xb6\xc6\x80\x3c\x5a\xe5\xa5\xc1\xbd\x8f\x2b\x8b" |
| "\x36\x58\x32\xc6\x73\xb7\x1a\x5c\xc7\x1d\x02\x70\x0d\x67\x5a\x68\x6c" |
| "\x3d\xab\x35\xa5\xc6\x18\x73\x67\x9f\x5c\x7f\xf8\x48\xac\xbc\x1d\x27" |
| "\x5c\xee\xae\x61\xfb\x51\x9d\x0d\x7a\x7d\x33\x25\xee\xa6\x3e\xf6\x68" |
| "\xc8\x8e\x33\x97\xcf\x76\x42\xe6\x52\x02\xb9", |
| 113)); |
| syscall(__NR_sendto, r[9], 0x20000340, 0x71, 0x8000, 0, 0); |
| break; |
| case 36: |
| syscall(__NR_socket, 2, 2, 0x88); |
| break; |
| case 37: |
| res = syscall(__NR_socket, 0x26, 5, 0); |
| if (res != -1) |
| r[10] = res; |
| break; |
| case 38: |
| syscall(__NR_setsockopt, r[10], 0x117, 1, 0, 0); |
| break; |
| case 39: |
| syscall(__NR_sendto, -1, 0, 0, 0x8000, 0, 0); |
| break; |
| case 40: |
| res = syscall(__NR_socket, 0x10, 3, 0x10); |
| if (res != -1) |
| r[11] = res; |
| break; |
| case 41: |
| NONFAILING(memcpy((void*)0x20000040, "TIPCv2\000", 7)); |
| res = syz_genetlink_get_family_id(0x20000040); |
| if (res != -1) |
| r[12] = res; |
| break; |
| case 42: |
| NONFAILING(*(uint64_t*)0x20000000 = 0); |
| NONFAILING(*(uint32_t*)0x20000008 = 0); |
| NONFAILING(*(uint64_t*)0x20000010 = 0x200000c0); |
| NONFAILING(*(uint64_t*)0x200000c0 = 0x20000100); |
| NONFAILING(*(uint32_t*)0x20000100 = 0x8c); |
| NONFAILING(*(uint16_t*)0x20000104 = r[12]); |
| NONFAILING(*(uint16_t*)0x20000106 = 1); |
| NONFAILING(*(uint32_t*)0x20000108 = 0); |
| NONFAILING(*(uint32_t*)0x2000010c = 0); |
| NONFAILING(*(uint8_t*)0x20000110 = 3); |
| NONFAILING(*(uint8_t*)0x20000111 = 0); |
| NONFAILING(*(uint16_t*)0x20000112 = 0); |
| NONFAILING(*(uint16_t*)0x20000114 = 0x78); |
| NONFAILING(*(uint16_t*)0x20000116 = 1); |
| NONFAILING(*(uint16_t*)0x20000118 = 0x38); |
| NONFAILING(*(uint16_t*)0x2000011a = 4); |
| NONFAILING(*(uint16_t*)0x2000011c = 0x14); |
| NONFAILING(*(uint16_t*)0x2000011e = 1); |
| NONFAILING(*(uint16_t*)0x20000120 = 2); |
| NONFAILING(*(uint16_t*)0x20000122 = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20000124 = htobe32(-1)); |
| NONFAILING(*(uint16_t*)0x20000130 = 0x20); |
| NONFAILING(*(uint16_t*)0x20000132 = 2); |
| NONFAILING(*(uint16_t*)0x20000134 = 0xa); |
| NONFAILING(*(uint16_t*)0x20000136 = htobe16(0x4e21)); |
| NONFAILING(*(uint32_t*)0x20000138 = htobe32(0xf51)); |
| NONFAILING(*(uint8_t*)0x2000013c = -1); |
| NONFAILING(*(uint8_t*)0x2000013d = 1); |
| NONFAILING(*(uint8_t*)0x2000013e = 0); |
| NONFAILING(*(uint8_t*)0x2000013f = 0); |
| NONFAILING(*(uint8_t*)0x20000140 = 0); |
| NONFAILING(*(uint8_t*)0x20000141 = 0); |
| NONFAILING(*(uint8_t*)0x20000142 = 0); |
| NONFAILING(*(uint8_t*)0x20000143 = 0); |
| NONFAILING(*(uint8_t*)0x20000144 = 0); |
| NONFAILING(*(uint8_t*)0x20000145 = 0); |
| NONFAILING(*(uint8_t*)0x20000146 = 0); |
| NONFAILING(*(uint8_t*)0x20000147 = 0); |
| NONFAILING(*(uint8_t*)0x20000148 = 0); |
| NONFAILING(*(uint8_t*)0x20000149 = 0); |
| NONFAILING(*(uint8_t*)0x2000014a = 0); |
| NONFAILING(*(uint8_t*)0x2000014b = 1); |
| NONFAILING(*(uint32_t*)0x2000014c = 3); |
| NONFAILING(*(uint16_t*)0x20000150 = 0x10); |
| NONFAILING(*(uint16_t*)0x20000152 = 1); |
| NONFAILING(memcpy((void*)0x20000154, "udp:syz0\000", 9)); |
| NONFAILING(*(uint16_t*)0x20000160 = 0x2c); |
| NONFAILING(*(uint16_t*)0x20000162 = 4); |
| NONFAILING(*(uint16_t*)0x20000164 = 0x14); |
| NONFAILING(*(uint16_t*)0x20000166 = 1); |
| NONFAILING(*(uint16_t*)0x20000168 = 2); |
| NONFAILING(*(uint16_t*)0x2000016a = htobe16(0x4e20)); |
| NONFAILING(*(uint32_t*)0x2000016c = htobe32(0x7f000001)); |
| NONFAILING(*(uint16_t*)0x20000178 = 0x14); |
| NONFAILING(*(uint16_t*)0x2000017a = 2); |
| NONFAILING(*(uint16_t*)0x2000017c = 2); |
| NONFAILING(*(uint16_t*)0x2000017e = htobe16(0x4e21)); |
| NONFAILING(*(uint32_t*)0x20000180 = htobe32(0xe0000001)); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0x8c); |
| NONFAILING(*(uint64_t*)0x20000018 = 1); |
| NONFAILING(*(uint64_t*)0x20000020 = 0); |
| NONFAILING(*(uint64_t*)0x20000028 = 0); |
| NONFAILING(*(uint32_t*)0x20000030 = 0); |
| syscall(__NR_sendmsg, r[11], 0x20000000, 4); |
| break; |
| case 43: |
| res = syscall(__NR_socketpair, 1, 5, 0, 0x20000180); |
| if (res != -1) |
| NONFAILING(r[13] = *(uint32_t*)0x20000184); |
| break; |
| case 44: |
| NONFAILING(*(uint16_t*)0x200000c0 = 2); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0x20000140); |
| NONFAILING(*(uint16_t*)0x20000140 = 0x50); |
| NONFAILING(*(uint8_t*)0x20000142 = 0); |
| NONFAILING(*(uint8_t*)0x20000143 = 0); |
| NONFAILING(*(uint32_t*)0x20000144 = 0x6e17); |
| NONFAILING(*(uint16_t*)0x20000148 = 6); |
| NONFAILING(*(uint8_t*)0x2000014a = 0); |
| NONFAILING(*(uint8_t*)0x2000014b = 0); |
| NONFAILING(*(uint32_t*)0x2000014c = 0); |
| syscall(__NR_setsockopt, r[13], 1, 0x1a, 0x200000c0, 0x10); |
| break; |
| case 45: |
| syscall(__NR_socket, 0x10, 3, 0x10); |
| break; |
| case 46: |
| NONFAILING(memcpy((void*)0x20000040, "TIPCv2\000", 7)); |
| syz_genetlink_get_family_id(0x20000040); |
| break; |
| case 47: |
| NONFAILING(memcpy((void*)0x20000040, "TIPCv2\000", 7)); |
| syz_genetlink_get_family_id(0x20000040); |
| break; |
| case 48: |
| NONFAILING(*(uint64_t*)0x20000000 = 0); |
| NONFAILING(*(uint32_t*)0x20000008 = 0); |
| NONFAILING(*(uint64_t*)0x20000010 = 0x200000c0); |
| NONFAILING(*(uint64_t*)0x200000c0 = 0); |
| NONFAILING(*(uint64_t*)0x200000c8 = 0); |
| NONFAILING(*(uint64_t*)0x20000018 = 1); |
| NONFAILING(*(uint64_t*)0x20000020 = 0); |
| NONFAILING(*(uint64_t*)0x20000028 = 0); |
| NONFAILING(*(uint32_t*)0x20000030 = 0); |
| syscall(__NR_sendmsg, -1, 0x20000000, 4); |
| break; |
| case 49: |
| NONFAILING(*(uint64_t*)0x20002a40 = 0); |
| NONFAILING(*(uint32_t*)0x20002a48 = 0); |
| NONFAILING(*(uint64_t*)0x20002a50 = 0x20001700); |
| NONFAILING(*(uint64_t*)0x20001700 = 0); |
| NONFAILING(*(uint64_t*)0x20001708 = 0); |
| NONFAILING(*(uint64_t*)0x20002a58 = 1); |
| NONFAILING(*(uint64_t*)0x20002a60 = 0); |
| NONFAILING(*(uint64_t*)0x20002a68 = 0); |
| NONFAILING(*(uint32_t*)0x20002a70 = 0); |
| NONFAILING(*(uint32_t*)0x20002a78 = 0); |
| syscall(__NR_recvmmsg, -1, 0x20002a40, 1, 0, 0); |
| break; |
| case 50: |
| res = syscall(__NR_socket, 2, 1, 0); |
| if (res != -1) |
| r[14] = res; |
| break; |
| case 51: |
| NONFAILING(*(uint32_t*)0x200000c0 = 0x25); |
| syscall(__NR_getsockopt, r[14], 6, 0, 0x20000080, 0x200000c0); |
| break; |
| case 52: |
| NONFAILING(memcpy((void*)0x20000000, "./cgroup\000", 9)); |
| res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0x200002, 0); |
| if (res != -1) |
| r[15] = res; |
| break; |
| case 53: |
| res = syscall(__NR_openat, r[15], 0, 2, 0); |
| if (res != -1) |
| r[16] = res; |
| break; |
| case 54: |
| syscall(__NR_writev, r[16], 0x20000700, 0x1000000000000110); |
| break; |
| case 55: |
| res = syscall(__NR_socket, 0x26, 5, 0); |
| if (res != -1) |
| r[17] = res; |
| break; |
| case 56: |
| NONFAILING(memcpy( |
| (void*)0x20000080, |
| "\xb7\xf2\x28\x8a\x91\x19\x93\xf0\x26\x5d\xf5\xcf\x1c\xdd\x8b\x55", |
| 16)); |
| syscall(__NR_setsockopt, r[17], 0x117, 1, 0x20000080, 0x10); |
| break; |
| case 57: |
| res = syscall(__NR_accept, r[17], 0, 0); |
| if (res != -1) |
| r[18] = res; |
| break; |
| case 58: |
| NONFAILING(sprintf((char*)0x20000000, "0x%016llx", (long long)-1)); |
| syscall(__NR_write, r[18], 0x20000000, 0xff34); |
| break; |
| case 59: |
| NONFAILING(*(uint64_t*)0x20001180 = 0); |
| NONFAILING(*(uint32_t*)0x20001188 = 0); |
| NONFAILING(*(uint64_t*)0x20001190 = 0x20000640); |
| NONFAILING(*(uint64_t*)0x20000640 = 0x200002c0); |
| NONFAILING(*(uint64_t*)0x20000648 = 0xfd40); |
| NONFAILING(*(uint64_t*)0x20001198 = 1); |
| NONFAILING(*(uint64_t*)0x200011a0 = 0); |
| NONFAILING(*(uint64_t*)0x200011a8 = 0); |
| NONFAILING(*(uint32_t*)0x200011b0 = 0); |
| NONFAILING(*(uint32_t*)0x200011b8 = 0); |
| syscall(__NR_recvmmsg, r[18], 0x20001180, 1, 0, 0); |
| break; |
| case 60: |
| res = syscall(__NR_socket, 0xa, 2, 0); |
| if (res != -1) |
| r[19] = res; |
| break; |
| case 61: |
| NONFAILING(*(uint16_t*)0x20000100 = 0xa); |
| NONFAILING(*(uint16_t*)0x20000102 = htobe16(0)); |
| NONFAILING(*(uint32_t*)0x20000104 = htobe32(0)); |
| NONFAILING(*(uint8_t*)0x20000108 = 0xfe); |
| NONFAILING(*(uint8_t*)0x20000109 = 0x80); |
| NONFAILING(*(uint8_t*)0x2000010a = 0); |
| NONFAILING(*(uint8_t*)0x2000010b = 0); |
| NONFAILING(*(uint8_t*)0x2000010c = 0); |
| NONFAILING(*(uint8_t*)0x2000010d = 0); |
| NONFAILING(*(uint8_t*)0x2000010e = 0); |
| NONFAILING(*(uint8_t*)0x2000010f = 0); |
| NONFAILING(*(uint8_t*)0x20000110 = 0); |
| NONFAILING(*(uint8_t*)0x20000111 = 0); |
| NONFAILING(*(uint8_t*)0x20000112 = 0); |
| NONFAILING(*(uint8_t*)0x20000113 = 0); |
| NONFAILING(*(uint8_t*)0x20000114 = 0); |
| NONFAILING(*(uint8_t*)0x20000115 = 0); |
| NONFAILING(*(uint8_t*)0x20000116 = 0); |
| NONFAILING(*(uint8_t*)0x20000117 = 0); |
| NONFAILING(*(uint32_t*)0x20000118 = 4); |
| syscall(__NR_connect, r[19], 0x20000100, 0x1c); |
| break; |
| case 62: |
| NONFAILING(*(uint16_t*)0x20000280 = 0xa); |
| NONFAILING(*(uint16_t*)0x20000282 = htobe16(0x4e24)); |
| NONFAILING(*(uint32_t*)0x20000284 = htobe32(0)); |
| NONFAILING(*(uint8_t*)0x20000288 = 0); |
| NONFAILING(*(uint8_t*)0x20000289 = 0); |
| NONFAILING(*(uint8_t*)0x2000028a = 0); |
| NONFAILING(*(uint8_t*)0x2000028b = 0); |
| NONFAILING(*(uint8_t*)0x2000028c = 0); |
| NONFAILING(*(uint8_t*)0x2000028d = 0); |
| NONFAILING(*(uint8_t*)0x2000028e = 0); |
| NONFAILING(*(uint8_t*)0x2000028f = 0); |
| NONFAILING(*(uint8_t*)0x20000290 = 0); |
| NONFAILING(*(uint8_t*)0x20000291 = 0); |
| NONFAILING(*(uint8_t*)0x20000292 = -1); |
| NONFAILING(*(uint8_t*)0x20000293 = -1); |
| NONFAILING(*(uint32_t*)0x20000294 = htobe32(0xe0000002)); |
| NONFAILING(*(uint32_t*)0x20000298 = 0); |
| syscall(__NR_connect, r[19], 0x20000280, 0x1c); |
| break; |
| case 63: |
| res = syscall(__NR_socket, 2, 1, 0); |
| if (res != -1) |
| r[20] = res; |
| break; |
| case 64: |
| NONFAILING(*(uint32_t*)0x200000c0 = 0x25); |
| syscall(__NR_getsockopt, r[20], 6, 0, 0x20000080, 0x200000c0); |
| break; |
| case 65: |
| NONFAILING(memcpy((void*)0x20000000, "./cgroup\000", 9)); |
| res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0x200002, 0); |
| if (res != -1) |
| r[21] = res; |
| break; |
| case 66: |
| NONFAILING(memcpy((void*)0x20000040, "memory.high\000", 12)); |
| syscall(__NR_openat, r[21], 0x20000040, 2, 0); |
| break; |
| case 67: |
| res = syscall(__NR_socket, 0xa, 1, 0x84); |
| if (res != -1) |
| r[22] = res; |
| break; |
| case 68: |
| NONFAILING(*(uint16_t*)0x20ef8cfd = 0xa); |
| NONFAILING(*(uint16_t*)0x20ef8cff = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20ef8d01 = htobe32(0)); |
| NONFAILING(*(uint64_t*)0x20ef8d05 = htobe64(0)); |
| NONFAILING(*(uint64_t*)0x20ef8d0d = htobe64(1)); |
| NONFAILING(*(uint32_t*)0x20ef8d15 = 0); |
| syscall(__NR_bind, r[22], 0x20ef8cfd, 0x1c); |
| break; |
| case 69: |
| syscall(__NR_listen, r[22], 5); |
| break; |
| case 70: |
| syscall(__NR_socket, 0xa, 2, 0x88); |
| break; |
| case 71: |
| res = syscall(__NR_socket, 0xa, 3, 0x87); |
| if (res != -1) |
| r[23] = res; |
| break; |
| case 72: |
| syscall(__NR_socket, 0x10, 3, 6); |
| break; |
| case 73: |
| syscall(__NR_accept, r[23], 0, 0); |
| break; |
| case 74: |
| syscall(__NR_getsockopt, -1, 0x84, 0x20, 0, 0); |
| break; |
| case 75: |
| res = syscall(__NR_socket, 2, 0x4000000000000001, 0); |
| if (res != -1) |
| r[24] = res; |
| break; |
| case 76: |
| NONFAILING(*(uint16_t*)0x20000000 = 2); |
| NONFAILING(*(uint16_t*)0x20000002 = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20000004 = htobe32(0xe0000001)); |
| syscall(__NR_bind, r[24], 0x20000000, 0x10); |
| break; |
| case 77: |
| syscall(__NR_sendto, r[24], 0, 0, 0x200007fd, 0, 0); |
| break; |
| case 78: |
| syscall(__NR_setsockopt, -1, 1, 0, 0, 0); |
| break; |
| case 79: |
| syscall(__NR_socket, 0x11, 0, 0x300); |
| break; |
| case 80: |
| syscall(__NR_setsockopt, -1, 1, 0x1a, 0, 0); |
| break; |
| case 81: |
| syz_emit_ethernet(0, 0, 0); |
| break; |
| case 82: |
| syscall(__NR_getsockopt, -1, 0x84, 0x1f, 0, 0); |
| break; |
| case 83: |
| syscall(__NR_getsockopt, -1, 0x84, 0x10, 0, 0); |
| break; |
| case 84: |
| syscall(__NR_sendmsg, -1, 0, 0); |
| break; |
| case 85: |
| syscall(__NR_getsockopt, -1, 0x11b, 7, 0, 0); |
| break; |
| case 86: |
| syscall(__NR_sendto, -1, 0, 0, 0, 0, 0); |
| break; |
| case 87: |
| NONFAILING(*(uint64_t*)0x20000240 = 0x20000040); |
| NONFAILING(*(uint32_t*)0x20000248 = 0x80); |
| NONFAILING(*(uint64_t*)0x20000250 = 0x20000180); |
| NONFAILING(*(uint64_t*)0x20000180 = 0x20003ac0); |
| NONFAILING(*(uint64_t*)0x20000188 = 0x1000); |
| NONFAILING(*(uint64_t*)0x20000258 = 1); |
| NONFAILING(*(uint64_t*)0x20000260 = 0); |
| NONFAILING(*(uint64_t*)0x20000268 = 0); |
| NONFAILING(*(uint32_t*)0x20000270 = 0); |
| syscall(__NR_recvmsg, r[24], 0x20000240, 0); |
| break; |
| case 88: |
| syscall(__NR_socket, 0x10, 0, 0); |
| break; |
| case 89: |
| syscall(__NR_sendmsg, -1, 0, 0); |
| break; |
| case 90: |
| NONFAILING(*(uint64_t*)0x20002300 = -1); |
| syscall(__NR_write, r[24], 0x20002300, 0x1000001bd); |
| break; |
| case 91: |
| res = syscall(__NR_socket, 0x2b, 1, 0); |
| if (res != -1) |
| r[25] = res; |
| break; |
| case 92: |
| NONFAILING(*(uint32_t*)0x20000200 = 0); |
| NONFAILING(*(uint16_t*)0x20000208 = 2); |
| NONFAILING(*(uint16_t*)0x2000020a = htobe16(0)); |
| NONFAILING(*(uint32_t*)0x2000020c = htobe32(0xe0000002)); |
| syscall(__NR_setsockopt, r[25], 0, 0x2a, 0x20000200, 0x88); |
| break; |
| case 93: |
| res = syscall(__NR_socket, 0xa, 1, 0x84); |
| if (res != -1) |
| r[26] = res; |
| break; |
| case 94: |
| NONFAILING(*(uint16_t*)0x20ef8cfd = 0xa); |
| NONFAILING(*(uint16_t*)0x20ef8cff = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20ef8d01 = htobe32(0)); |
| NONFAILING(*(uint64_t*)0x20ef8d05 = htobe64(0)); |
| NONFAILING(*(uint64_t*)0x20ef8d0d = htobe64(1)); |
| NONFAILING(*(uint32_t*)0x20ef8d15 = 0); |
| syscall(__NR_bind, r[26], 0x20ef8cfd, 0x1c); |
| break; |
| case 95: |
| syscall(__NR_listen, r[26], 5); |
| break; |
| case 96: |
| res = syscall(__NR_socket, 0xa, 2, 0x88); |
| if (res != -1) |
| r[27] = res; |
| break; |
| case 97: |
| NONFAILING(memcpy((void*)0x20000500, |
| "\x0a\x5c\x2d\x02\x40\x31\x62\x22\xb4\x9a\x19\x98\xe9\x44" |
| "\x0d\x85\x71\x70\x70", |
| 19)); |
| syscall(__NR_ioctl, r[27], 0x20000000008912, 0x20000500); |
| break; |
| case 98: |
| res = syscall(__NR_socket, 0xa, 3, 0x87); |
| if (res != -1) |
| r[28] = res; |
| break; |
| case 99: |
| syscall(__NR_socket, 0x10, 3, 6); |
| break; |
| case 100: |
| syscall(__NR_accept, r[28], 0, 0); |
| break; |
| case 101: |
| res = syscall(__NR_socket, 2, 0x4000000000000001, 0); |
| if (res != -1) |
| r[29] = res; |
| break; |
| case 102: |
| NONFAILING(*(uint16_t*)0x20000280 = 2); |
| NONFAILING(*(uint16_t*)0x20000282 = htobe16(0)); |
| NONFAILING(*(uint8_t*)0x20000284 = 0xac); |
| NONFAILING(*(uint8_t*)0x20000285 = 0x14); |
| NONFAILING(*(uint8_t*)0x20000286 = 0x14); |
| NONFAILING(*(uint8_t*)0x20000287 = 0xaa); |
| NONFAILING(*(uint16_t*)0x20000300 = 0); |
| NONFAILING(*(uint16_t*)0x20000302 = 2); |
| NONFAILING(*(uint32_t*)0x20000304 = 2); |
| NONFAILING(memcpy( |
| (void*)0x20000308, |
| "\xa7\x77\x60\xf5\xa7\x64\x5b\xc4\x3c\x24\x1d\x69\x91\x2d\xda\x0c\x63" |
| "\xc2\xa6\x67\x26\xf8\xcf\xaf\xd6\xc8\xfe\x2c\x98\xde\x7b\xa4\x49\x47" |
| "\xa7\x90\x15\xf0\xfe\x57\x91\x7c\xb6\x2a\x93\x98\x7a\x93\x8f\xde\xdf" |
| "\xce\x7b\xbb\xa4\xfe\xc2\xd8\xa0\x9c\x41\xfb\x23\x32\x45\xf2\x60\x4b" |
| "\x9e\x07\xb8\xab\x79\xec\x15\xef\x28\x18\xa1\x79", |
| 80)); |
| syscall(__NR_setsockopt, r[29], 6, 0xe, 0x20000280, 0xd8); |
| break; |
| case 103: |
| NONFAILING(*(uint16_t*)0x20000000 = 2); |
| NONFAILING(*(uint16_t*)0x20000002 = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20000004 = htobe32(0xe0000001)); |
| syscall(__NR_bind, r[29], 0x20000000, 0x10); |
| break; |
| case 104: |
| NONFAILING(*(uint16_t*)0x200008c0 = 2); |
| NONFAILING(*(uint16_t*)0x200008c2 = htobe16(0x4e23)); |
| NONFAILING(*(uint8_t*)0x200008c4 = 0xac); |
| NONFAILING(*(uint8_t*)0x200008c5 = 0x14); |
| NONFAILING(*(uint8_t*)0x200008c6 = 0x14); |
| NONFAILING(*(uint8_t*)0x200008c7 = 0xaa); |
| syscall(__NR_sendto, r[29], 0, 0, 0x200007fd, 0x200008c0, 0x10); |
| break; |
| case 105: |
| syscall(__NR_setsockopt, -1, 1, 0, 0, 0); |
| break; |
| case 106: |
| syscall(__NR_accept, -1, 0, 0); |
| break; |
| case 107: |
| syscall(__NR_socket, 0x11, 0, 0x300); |
| break; |
| case 108: |
| syscall(__NR_setsockopt, -1, 1, 0x1a, 0, 0); |
| break; |
| case 109: |
| syz_emit_ethernet(0, 0, 0); |
| break; |
| case 110: |
| syscall(__NR_getsockopt, -1, 0x84, 0x1f, 0, 0); |
| break; |
| case 111: |
| syscall(__NR_getsockopt, -1, 0x84, 0x10, 0, 0); |
| break; |
| case 112: |
| syscall(__NR_getsockopt, -1, 0x11b, 7, 0, 0); |
| break; |
| case 113: |
| syscall(__NR_sendto, -1, 0, 0, 0, 0, 0); |
| break; |
| case 114: |
| syscall(__NR_socket, 0x10, 3, 0xc); |
| break; |
| case 115: |
| syscall(__NR_setsockopt, -1, 0x114, 3, 0, 0); |
| break; |
| case 116: |
| NONFAILING(*(uint64_t*)0x20000240 = 0x20000040); |
| NONFAILING(*(uint32_t*)0x20000248 = 0x80); |
| NONFAILING(*(uint64_t*)0x20000250 = 0x20000180); |
| NONFAILING(*(uint64_t*)0x20000180 = 0x20003ac0); |
| NONFAILING(*(uint64_t*)0x20000188 = 0x1000); |
| NONFAILING(*(uint64_t*)0x20000258 = 1); |
| NONFAILING(*(uint64_t*)0x20000260 = 0); |
| NONFAILING(*(uint64_t*)0x20000268 = 0); |
| NONFAILING(*(uint32_t*)0x20000270 = 0); |
| syscall(__NR_recvmsg, r[29], 0x20000240, 0); |
| break; |
| case 117: |
| syscall(__NR_socket, 0x10, 0, 0); |
| break; |
| case 118: |
| syscall(__NR_sendmsg, -1, 0, 0); |
| break; |
| case 119: |
| NONFAILING(*(uint64_t*)0x20002300 = -1); |
| syscall(__NR_write, r[29], 0x20002300, 0x1000001bd); |
| break; |
| case 120: |
| res = syscall(__NR_socket, 0x2b, 1, 0); |
| if (res != -1) |
| r[30] = res; |
| break; |
| case 121: |
| NONFAILING(*(uint32_t*)0x20000200 = 0); |
| NONFAILING(*(uint16_t*)0x20000208 = 2); |
| NONFAILING(*(uint16_t*)0x2000020a = htobe16(0)); |
| NONFAILING(*(uint32_t*)0x2000020c = htobe32(0xe0000002)); |
| syscall(__NR_setsockopt, r[30], 0, 0x2a, 0x20000200, 0x88); |
| break; |
| case 122: |
| syscall(__NR_socket, 2, 2, 0x88); |
| break; |
| case 123: |
| res = syscall(__NR_socket, 0x10, 0x4000000002, 0); |
| if (res != -1) |
| r[31] = res; |
| break; |
| case 124: |
| syscall(__NR_sendmsg, r[31], 0, 0); |
| break; |
| case 125: |
| res = syscall(__NR_socket, 0xa, 1, 0x84); |
| if (res != -1) |
| r[32] = res; |
| break; |
| case 126: |
| syscall(__NR_bind, r[32], 0, 0); |
| break; |
| case 127: |
| syscall(__NR_listen, r[32], 5); |
| break; |
| case 128: |
| res = syscall(__NR_socket, 0xa, 2, 0x88); |
| if (res != -1) |
| r[33] = res; |
| break; |
| case 129: |
| NONFAILING(memcpy((void*)0x20000500, |
| "\x0a\x5c\x2d\x02\x40\x31\x62\x22\xb4\x9a\x19\x98\xe9\x44" |
| "\x0d\x85\x71\x70\x70", |
| 19)); |
| syscall(__NR_ioctl, r[33], 0x20000000008912, 0x20000500); |
| break; |
| case 130: |
| res = syscall(__NR_socket, 0xa, 3, 0x87); |
| if (res != -1) |
| r[34] = res; |
| break; |
| case 131: |
| syscall(__NR_socket, 0x10, 3, 6); |
| break; |
| case 132: |
| syscall(__NR_accept, r[34], 0, 0); |
| break; |
| case 133: |
| syscall(__NR_getsockopt, -1, 0x84, 0x20, 0, 0); |
| break; |
| case 134: |
| res = syscall(__NR_socket, 2, 0x4000000000000001, 0); |
| if (res != -1) |
| r[35] = res; |
| break; |
| case 135: |
| NONFAILING(*(uint16_t*)0x20000000 = 2); |
| NONFAILING(*(uint16_t*)0x20000002 = htobe16(0x4e23)); |
| NONFAILING(*(uint32_t*)0x20000004 = htobe32(0xe0000001)); |
| syscall(__NR_bind, r[35], 0x20000000, 0x10); |
| break; |
| case 136: |
| NONFAILING(*(uint16_t*)0x200008c0 = 2); |
| NONFAILING(*(uint16_t*)0x200008c2 = htobe16(0x4e23)); |
| NONFAILING(*(uint8_t*)0x200008c4 = 0xac); |
| NONFAILING(*(uint8_t*)0x200008c5 = 0x14); |
| NONFAILING(*(uint8_t*)0x200008c6 = 0x14); |
| NONFAILING(*(uint8_t*)0x200008c7 = 0xaa); |
| syscall(__NR_sendto, r[35], 0, 0, 0x200007fd, 0x200008c0, 0x10); |
| break; |
| case 137: |
| syscall(__NR_accept, -1, 0, 0); |
| break; |
| case 138: |
| syz_genetlink_get_family_id(0); |
| break; |
| case 139: |
| syscall(__NR_setsockopt, -1, 1, 0x1a, 0, 0); |
| break; |
| case 140: |
| syz_emit_ethernet(0, 0, 0); |
| break; |
| case 141: |
| syscall(__NR_getsockopt, -1, 0x84, 0x1f, 0, 0); |
| break; |
| case 142: |
| syscall(__NR_getsockopt, -1, 0x84, 0x10, 0, 0); |
| break; |
| case 143: |
| syscall(__NR_sendmsg, -1, 0, 0); |
| break; |
| case 144: |
| syscall(__NR_getsockopt, -1, 0x11b, 7, 0, 0); |
| break; |
| case 145: |
| syscall(__NR_sendto, -1, 0, 0, 0, 0, 0); |
| break; |
| case 146: |
| syscall(__NR_socket, 0x10, 3, 0xc); |
| break; |
| case 147: |
| syscall(__NR_setsockopt, -1, 0x114, 3, 0, 0); |
| break; |
| case 148: |
| NONFAILING(*(uint64_t*)0x20000240 = 0x20000040); |
| NONFAILING(*(uint32_t*)0x20000248 = 0x80); |
| NONFAILING(*(uint64_t*)0x20000250 = 0x20000180); |
| NONFAILING(*(uint64_t*)0x20000180 = 0x20003ac0); |
| NONFAILING(*(uint64_t*)0x20000188 = 0xdc00); |
| NONFAILING(*(uint64_t*)0x20000258 = 1); |
| NONFAILING(*(uint64_t*)0x20000260 = 0x20000200); |
| NONFAILING(*(uint64_t*)0x20000268 = 0x14); |
| NONFAILING(*(uint32_t*)0x20000270 = 0); |
| syscall(__NR_recvmsg, r[35], 0x20000240, 0); |
| break; |
| case 149: |
| syscall(__NR_sendmsg, -1, 0, 0); |
| break; |
| case 150: |
| NONFAILING(*(uint64_t*)0x20002300 = -1); |
| syscall(__NR_write, r[35], 0x20002300, 0x1000001bd); |
| break; |
| case 151: |
| res = syscall(__NR_socket, 2, 2, 0x88); |
| if (res != -1) |
| r[36] = res; |
| break; |
| case 152: |
| NONFAILING(memcpy((void*)0x20000000, |
| "\x0a\xdc\x1f\x02\x3c\x12\x3f\x31\x88\xa0\x70", 11)); |
| syscall(__NR_ioctl, r[36], 0x1000008912, 0x20000000); |
| break; |
| case 153: |
| res = syscall(__NR_socket, 0x10, 0x4000000002, 0); |
| if (res != -1) |
| r[37] = res; |
| break; |
| case 154: |
| NONFAILING(*(uint64_t*)0x200000c0 = 0); |
| NONFAILING(*(uint32_t*)0x200000c8 = 0); |
| NONFAILING(*(uint64_t*)0x200000d0 = 0); |
| NONFAILING(*(uint64_t*)0x200000d8 = 0); |
| NONFAILING(*(uint64_t*)0x200000e0 = 0); |
| NONFAILING(*(uint64_t*)0x200000e8 = 0); |
| NONFAILING(*(uint32_t*)0x200000f0 = 0); |
| syscall(__NR_sendmsg, r[37], 0x200000c0, 0); |
| break; |
| case 155: |
| res = syscall(__NR_socket, 0xa, 2, 0); |
| if (res != -1) |
| r[38] = res; |
| break; |
| case 156: |
| NONFAILING(*(uint16_t*)0x20000100 = 0xa); |
| NONFAILING(*(uint16_t*)0x20000102 = htobe16(0)); |
| NONFAILING(*(uint32_t*)0x20000104 = htobe32(0)); |
| NONFAILING(*(uint8_t*)0x20000108 = 0xfe); |
| NONFAILING(*(uint8_t*)0x20000109 = 0x80); |
| NONFAILING(*(uint8_t*)0x2000010a = 0); |
| NONFAILING(*(uint8_t*)0x2000010b = 0); |
| NONFAILING(*(uint8_t*)0x2000010c = 0); |
| NONFAILING(*(uint8_t*)0x2000010d = 0); |
| NONFAILING(*(uint8_t*)0x2000010e = 0); |
| NONFAILING(*(uint8_t*)0x2000010f = 0); |
| NONFAILING(*(uint8_t*)0x20000110 = 0); |
| NONFAILING(*(uint8_t*)0x20000111 = 0); |
| NONFAILING(*(uint8_t*)0x20000112 = 0); |
| NONFAILING(*(uint8_t*)0x20000113 = 0); |
| NONFAILING(*(uint8_t*)0x20000114 = 0); |
| NONFAILING(*(uint8_t*)0x20000115 = 0); |
| NONFAILING(*(uint8_t*)0x20000116 = 0); |
| NONFAILING(*(uint8_t*)0x20000117 = 0); |
| NONFAILING(*(uint32_t*)0x20000118 = 4); |
| syscall(__NR_connect, r[38], 0x20000100, 0x1c); |
| break; |
| case 157: |
| NONFAILING(*(uint16_t*)0x20000280 = 0xa); |
| NONFAILING(*(uint16_t*)0x20000282 = htobe16(0x4e24)); |
| NONFAILING(*(uint32_t*)0x20000284 = htobe32(0)); |
| NONFAILING(*(uint8_t*)0x20000288 = 0); |
| NONFAILING(*(uint8_t*)0x20000289 = 0); |
| NONFAILING(*(uint8_t*)0x2000028a = 0); |
| NONFAILING(*(uint8_t*)0x2000028b = 0); |
| NONFAILING(*(uint8_t*)0x2000028c = 0); |
| NONFAILING(*(uint8_t*)0x2000028d = 0); |
| NONFAILING(*(uint8_t*)0x2000028e = 0); |
| NONFAILING(*(uint8_t*)0x2000028f = 0); |
| NONFAILING(*(uint8_t*)0x20000290 = 0); |
| NONFAILING(*(uint8_t*)0x20000291 = 0); |
| NONFAILING(*(uint8_t*)0x20000292 = -1); |
| NONFAILING(*(uint8_t*)0x20000293 = -1); |
| NONFAILING(*(uint32_t*)0x20000294 = htobe32(0xe0000002)); |
| NONFAILING(*(uint32_t*)0x20000298 = 0); |
| syscall(__NR_connect, r[38], 0x20000280, 0x1c); |
| break; |
| case 158: |
| syscall(__NR_sendmmsg, r[38], 0x200092c0, 0x4ff, 0); |
| break; |
| } |
| } |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| install_segv_handler(); |
| for (procid = 0; procid < 6; procid++) { |
| if (fork() == 0) { |
| use_temporary_dir(); |
| do_sandbox_none(); |
| } |
| } |
| sleep(1000000); |
| return 0; |
| } |