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kernel / pub / scm / linux / kernel / git / shuah / linux-arts / 07759b820a9cbf01333d861d8eb2613b20d1ede4 / . / syzkaller-repros / linux / 744b8267432cf9dae35c55af4afd83bf43d8e5ec.c
blob: b0b4c4023eb710f5b981549a90b7e3c9756b3d1f [file] [log] [blame]
// KASAN: use-after-free Write in __unwind_start (2)
// https://syzkaller.appspot.com/bug?id=744b8267432cf9dae35c55af4afd83bf43d8e5ec
// status:invalid
// autogenerated by syzkaller (http://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <errno.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/futex.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/ip.h>
#include <linux/net.h>
#include <linux/tcp.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <signal.h>
#include <stdarg.h>
#include <stdarg.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/prctl.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/time.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
__attribute__((noreturn)) static void doexit(int status)
{
volatile unsigned i;
syscall(__NR_exit_group, status);
for (i = 0;; i++) {
}
}
#include <stdint.h>
#include <string.h>
const int kFailStatus = 67;
const int kRetryStatus = 69;
static void fail(const char* msg, ...)
{
int e = errno;
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
fprintf(stderr, " (errno %d)\n", e);
doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}
#define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1)
#define BITMASK_LEN_OFF(type, bf_off, bf_len) \
(type)(BITMASK_LEN(type, (bf_len)) << (bf_off))
#define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len) \
if ((bf_off) == 0 && (bf_len) == 0) { \
*(type*)(addr) = (type)(val); \
} else { \
type new_val = *(type*)(addr); \
new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len)); \
new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off); \
*(type*)(addr) = new_val; \
}
struct csum_inet {
uint32_t acc;
};
static void csum_inet_init(struct csum_inet* csum)
{
csum->acc = 0;
}
static void csum_inet_update(struct csum_inet* csum, const uint8_t* data,
size_t length)
{
if (length == 0)
return;
size_t i;
for (i = 0; i < length - 1; i += 2)
csum->acc += *(uint16_t*)&data[i];
if (length & 1)
csum->acc += (uint16_t)data[length - 1];
while (csum->acc > 0xffff)
csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}
static uint16_t csum_inet_digest(struct csum_inet* csum)
{
return ~csum->acc;
}
static uint64_t current_time_ms()
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
fail("clock_gettime failed");
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void vsnprintf_check(char* str, size_t size, const char* format,
va_list args)
{
int rv;
rv = vsnprintf(str, size, format, args);
if (rv < 0)
fail("tun: snprintf failed");
if ((size_t)rv >= size)
fail("tun: string '%s...' doesn't fit into buffer", str);
}
static void snprintf_check(char* str, size_t size, const char* format, ...)
{
va_list args;
va_start(args, format);
vsnprintf_check(str, size, format, args);
va_end(args);
}
#define COMMAND_MAX_LEN 128
#define PATH_PREFIX \
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
#define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)
static void execute_command(bool panic, const char* format, ...)
{
va_list args;
char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
int rv;
va_start(args, format);
memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args);
rv = system(command);
if (panic && rv != 0)
fail("tun: command \"%s\" failed with code %d", &command[0], rv);
va_end(args);
}
static int tunfd = -1;
static int tun_frags_enabled;
#define SYZ_TUN_MAX_PACKET_SIZE 1000
#define TUN_IFACE "syz_tun"
#define LOCAL_MAC "aa:aa:aa:aa:aa:aa"
#define REMOTE_MAC "aa:aa:aa:aa:aa:bb"
#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 = 252;
if (dup2(tunfd, kTunFd) < 0)
fail("dup2(tunfd, kTunFd) failed");
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)
fail("tun: ioctl(TUNSETIFF) failed");
}
if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0)
fail("tun: ioctl(TUNGETIFF) failed");
tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0;
execute_command(1, "sysctl -w net.ipv6.conf.%s.accept_dad=0", TUN_IFACE);
execute_command(1, "sysctl -w net.ipv6.conf.%s.router_solicitations=0",
TUN_IFACE);
execute_command(1, "ip link set dev %s address %s", TUN_IFACE, LOCAL_MAC);
execute_command(1, "ip addr add %s/24 dev %s", LOCAL_IPV4, TUN_IFACE);
execute_command(1, "ip -6 addr add %s/120 dev %s", LOCAL_IPV6, TUN_IFACE);
execute_command(1, "ip neigh add %s lladdr %s dev %s nud permanent",
REMOTE_IPV4, REMOTE_MAC, TUN_IFACE);
execute_command(1, "ip -6 neigh add %s lladdr %s dev %s nud permanent",
REMOTE_IPV6, REMOTE_MAC, TUN_IFACE);
execute_command(1, "ip link set dev %s up", TUN_IFACE);
}
#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02hx"
#define DEV_MAC "aa:aa:aa:aa:aa:%02hx"
static void initialize_netdevices(void)
{
unsigned i;
const char* devtypes[] = {"ip6gretap", "bridge", "vcan", "bond", "veth"};
const char* devnames[] = {"lo", "sit0", "bridge0", "vcan0",
"tunl0", "gre0", "gretap0", "ip_vti0",
"ip6_vti0", "ip6tnl0", "ip6gre0", "ip6gretap0",
"erspan0", "bond0", "veth0", "veth1"};
for (i = 0; i < sizeof(devtypes) / (sizeof(devtypes[0])); i++)
execute_command(0, "ip link add dev %s0 type %s", devtypes[i], devtypes[i]);
execute_command(0, "ip link add dev veth1 type veth");
for (i = 0; i < sizeof(devnames) / (sizeof(devnames[0])); i++) {
char addr[32];
snprintf_check(addr, sizeof(addr), DEV_IPV4, i + 10);
execute_command(0, "ip -4 addr add %s/24 dev %s", addr, devnames[i]);
snprintf_check(addr, sizeof(addr), DEV_IPV6, i + 10);
execute_command(0, "ip -6 addr add %s/120 dev %s", addr, devnames[i]);
snprintf_check(addr, sizeof(addr), DEV_MAC, i + 10);
execute_command(0, "ip link set dev %s address %s", devnames[i], addr);
execute_command(0, "ip link set dev %s up", devnames[i]);
}
}
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;
fail("tun: read failed with %d", rv);
}
return rv;
}
#define MAX_FRAGS 4
struct vnet_fragmentation {
uint32_t full;
uint32_t count;
uint32_t frags[MAX_FRAGS];
};
static uintptr_t syz_emit_ethernet(uintptr_t a0, uintptr_t a1, uintptr_t 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;
full = frags->full;
count = frags->count;
if (count > MAX_FRAGS)
count = MAX_FRAGS;
for (i = 0; i < count && length != 0; i++) {
uint32_t size = 0;
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 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 = 128 << 20;
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 8 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 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);
#define CLONE_NEWCGROUP 0x02000000
if (unshare(CLONE_NEWNS)) {
}
if (unshare(CLONE_NEWIPC)) {
}
if (unshare(CLONE_NEWCGROUP)) {
}
if (unshare(CLONE_NEWUTS)) {
}
if (unshare(CLONE_SYSVSEM)) {
}
}
static int do_sandbox_none(void)
{
if (unshare(CLONE_NEWPID)) {
}
int pid = fork();
if (pid < 0)
fail("sandbox fork failed");
if (pid)
return pid;
sandbox_common();
if (unshare(CLONE_NEWNET)) {
}
initialize_tun();
initialize_netdevices();
loop();
doexit(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)
fail("socket(%d, SOCK_STREAM, IPPROTO_TCP)", family);
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;
}
fail("getsockopt(IPT_SO_GET_INFO)");
}
if (table->info.size > sizeof(table->replace.entrytable))
fail("table size is too large: %u", table->info.size);
if (table->info.num_entries > XT_MAX_ENTRIES)
fail("too many counters: %u", table->info.num_entries);
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))
fail("getsockopt(IPT_SO_GET_ENTRIES)");
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)
fail("socket(%d, SOCK_STREAM, IPPROTO_TCP)", family);
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))
fail("getsockopt(IPT_SO_GET_INFO)");
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))
fail("getsockopt(IPT_SO_GET_ENTRIES)");
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))
fail("setsockopt(IPT_SO_SET_REPLACE)");
}
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)
fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
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;
}
fail("getsockopt(ARPT_SO_GET_INFO)");
}
if (table->info.size > sizeof(table->replace.entrytable))
fail("table size is too large: %u", table->info.size);
if (table->info.num_entries > XT_MAX_ENTRIES)
fail("too many counters: %u", table->info.num_entries);
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))
fail("getsockopt(ARPT_SO_GET_ENTRIES)");
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)
fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
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))
fail("getsockopt(ARPT_SO_GET_INFO)");
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))
fail("getsockopt(ARPT_SO_GET_ENTRIES)");
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, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
fail("setsockopt(ARPT_SO_SET_REPLACE)");
}
close(fd);
}
#include <linux/if.h>
#include <linux/netfilter_bridge/ebtables.h>
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)
fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
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;
}
fail("getsockopt(EBT_SO_GET_INIT_INFO)");
}
if (table->replace.entries_size > sizeof(table->entrytable))
fail("table size is too large: %u", table->replace.entries_size);
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))
fail("getsockopt(EBT_SO_GET_INIT_ENTRIES)");
}
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)
fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
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))
fail("getsockopt(EBT_SO_GET_INFO)");
replace.num_counters = 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))
fail("getsockopt(EBT_SO_GET_ENTRIES)");
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++;
}
}
optlen = sizeof(table->replace) + table->replace.entries_size;
if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
fail("setsockopt(EBT_SO_SET_ENTRIES)");
}
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 test();
void loop()
{
int iter;
checkpoint_net_namespace();
for (iter = 0;; iter++) {
int pid = fork();
if (pid < 0)
fail("loop fork failed");
if (pid == 0) {
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
flush_tun();
test();
doexit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
int res = waitpid(-1, &status, __WALL | WNOHANG);
if (res == pid)
break;
usleep(1000);
if (current_time_ms() - start > 5 * 1000) {
kill(-pid, SIGKILL);
kill(pid, SIGKILL);
while (waitpid(-1, &status, __WALL) != pid) {
}
break;
}
}
reset_net_namespace();
}
}
struct thread_t {
int created, running, call;
pthread_t th;
};
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 (;;) {
while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE))
syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
__atomic_store_n(&th->running, 0, __ATOMIC_RELEASE);
syscall(SYS_futex, &th->running, FUTEX_WAKE);
}
return 0;
}
static void execute(int num_calls)
{
int call, thread;
running = 0;
for (call = 0; call < num_calls; call++) {
for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) {
struct thread_t* th = &threads[thread];
if (!th->created) {
th->created = 1;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 128 << 10);
pthread_create(&th->th, &attr, thr, th);
}
if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) {
th->call = call;
__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
__atomic_store_n(&th->running, 1, __ATOMIC_RELEASE);
syscall(SYS_futex, &th->running, FUTEX_WAKE);
struct timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 20 * 1000 * 1000;
syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts);
if (running)
usleep((call == num_calls - 1) ? 10000 : 1000);
break;
}
}
}
}
uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
uint64_t procid;
void execute_call(int call)
{
long res;
switch (call) {
case 0:
*(uint32_t*)0x2001d000 = 2;
*(uint32_t*)0x2001d004 = 0x196;
*(uint8_t*)0x2001d008 = 0x66;
*(uint8_t*)0x2001d009 = 1;
*(uint8_t*)0x2001d00a = 0;
*(uint8_t*)0x2001d00b = 0;
*(uint32_t*)0x2001d00c = 0;
*(uint64_t*)0x2001d010 = 0;
*(uint64_t*)0x2001d018 = 0;
*(uint64_t*)0x2001d020 = 0;
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 0, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 1, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 2, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 3, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 4, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, -1, 5, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 6, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 7, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 8, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 9, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 10, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 11, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 12, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 13, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 14, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 15, 2);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 17, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 18, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 19, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 20, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 21, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 22, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 23, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 24, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 25, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 26, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 27, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 28, 1);
STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 29, 35);
*(uint32_t*)0x2001d030 = 0;
*(uint32_t*)0x2001d034 = 0;
*(uint64_t*)0x2001d038 = 0x20000000;
*(uint64_t*)0x2001d040 = 0;
*(uint64_t*)0x2001d048 = 0;
*(uint64_t*)0x2001d050 = 0;
*(uint64_t*)0x2001d058 = 0;
*(uint32_t*)0x2001d060 = 0;
*(uint64_t*)0x2001d068 = 0;
*(uint32_t*)0x2001d070 = 0;
*(uint16_t*)0x2001d074 = 0;
*(uint16_t*)0x2001d076 = 0;
syscall(__NR_perf_event_open, 0x2001d000, 0, -1, -1, 0);
break;
case 1:
res = syscall(__NR_socket, 0xa, 0x801, 0);
if (res != -1)
r[0] = res;
break;
case 2:
memcpy((void*)0x20000000, "\x6e\x61\x74\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00",
32);
*(uint32_t*)0x20000020 = 0x1b;
*(uint32_t*)0x20000024 = 5;
*(uint32_t*)0x20000028 = 0x358;
*(uint32_t*)0x2000002c = 0;
*(uint32_t*)0x20000030 = 0x170;
*(uint32_t*)0x20000034 = -1;
*(uint32_t*)0x20000038 = 0x170;
*(uint32_t*)0x2000003c = 0x218;
*(uint32_t*)0x20000040 = 0x2c0;
*(uint32_t*)0x20000044 = 0x2c0;
*(uint32_t*)0x20000048 = -1;
*(uint32_t*)0x2000004c = 0x2c0;
*(uint32_t*)0x20000050 = 0x2c0;
*(uint32_t*)0x20000054 = 5;
*(uint64_t*)0x20000058 = 0x20002fb0;
*(uint8_t*)0x20000060 = 0;
*(uint8_t*)0x20000061 = 0;
*(uint8_t*)0x20000062 = 0;
*(uint8_t*)0x20000063 = 0;
*(uint8_t*)0x20000064 = 0;
*(uint8_t*)0x20000065 = 0;
*(uint8_t*)0x20000066 = 0;
*(uint8_t*)0x20000067 = 0;
*(uint8_t*)0x20000068 = 0;
*(uint8_t*)0x20000069 = 0;
*(uint8_t*)0x2000006a = 0;
*(uint8_t*)0x2000006b = 0;
*(uint8_t*)0x2000006c = 0;
*(uint8_t*)0x2000006d = 0;
*(uint8_t*)0x2000006e = 0;
*(uint8_t*)0x2000006f = 0;
*(uint8_t*)0x20000070 = 0;
*(uint8_t*)0x20000071 = 0;
*(uint8_t*)0x20000072 = 0;
*(uint8_t*)0x20000073 = 0;
*(uint8_t*)0x20000074 = 0;
*(uint8_t*)0x20000075 = 0;
*(uint8_t*)0x20000076 = 0;
*(uint8_t*)0x20000077 = 0;
*(uint8_t*)0x20000078 = 0;
*(uint8_t*)0x20000079 = 0;
*(uint8_t*)0x2000007a = 0;
*(uint8_t*)0x2000007b = 0;
*(uint8_t*)0x2000007c = 0;
*(uint8_t*)0x2000007d = 0;
*(uint8_t*)0x2000007e = 0;
*(uint8_t*)0x2000007f = 0;
*(uint8_t*)0x20000080 = 0;
*(uint8_t*)0x20000081 = 0;
*(uint8_t*)0x20000082 = 0;
*(uint8_t*)0x20000083 = 0;
*(uint8_t*)0x20000084 = 0;
*(uint8_t*)0x20000085 = 0;
*(uint8_t*)0x20000086 = 0;
*(uint8_t*)0x20000087 = 0;
*(uint8_t*)0x20000088 = 0;
*(uint8_t*)0x20000089 = 0;
*(uint8_t*)0x2000008a = 0;
*(uint8_t*)0x2000008b = 0;
*(uint8_t*)0x2000008c = 0;
*(uint8_t*)0x2000008d = 0;
*(uint8_t*)0x2000008e = 0;
*(uint8_t*)0x2000008f = 0;
*(uint8_t*)0x20000090 = 0;
*(uint8_t*)0x20000091 = 0;
*(uint8_t*)0x20000092 = 0;
*(uint8_t*)0x20000093 = 0;
*(uint8_t*)0x20000094 = 0;
*(uint8_t*)0x20000095 = 0;
*(uint8_t*)0x20000096 = 0;
*(uint8_t*)0x20000097 = 0;
*(uint8_t*)0x20000098 = 0;
*(uint8_t*)0x20000099 = 0;
*(uint8_t*)0x2000009a = 0;
*(uint8_t*)0x2000009b = 0;
*(uint8_t*)0x2000009c = 0;
*(uint8_t*)0x2000009d = 0;
*(uint8_t*)0x2000009e = 0;
*(uint8_t*)0x2000009f = 0;
*(uint8_t*)0x200000a0 = 0;
*(uint8_t*)0x200000a1 = 0;
*(uint8_t*)0x200000a2 = 0;
*(uint8_t*)0x200000a3 = 0;
*(uint8_t*)0x200000a4 = 0;
*(uint8_t*)0x200000a5 = 0;
*(uint8_t*)0x200000a6 = 0;
*(uint8_t*)0x200000a7 = 0;
*(uint8_t*)0x200000a8 = 0;
*(uint8_t*)0x200000a9 = 0;
*(uint8_t*)0x200000aa = 0;
*(uint8_t*)0x200000ab = 0;
*(uint8_t*)0x200000ac = 0;
*(uint8_t*)0x200000ad = 0;
*(uint8_t*)0x200000ae = 0;
*(uint8_t*)0x200000af = 0;
*(uint8_t*)0x200000b0 = 0;
*(uint8_t*)0x200000b1 = 0;
*(uint8_t*)0x200000b2 = 0;
*(uint8_t*)0x200000b3 = 0;
*(uint32_t*)0x200000b4 = 0;
*(uint16_t*)0x200000b8 = 0x90;
*(uint16_t*)0x200000ba = 0xc8;
*(uint32_t*)0x200000bc = 0;
*(uint64_t*)0x200000c0 = 0;
*(uint64_t*)0x200000c8 = 0;
*(uint16_t*)0x200000d0 = 0x20;
memcpy((void*)0x200000d2, "\x73\x6f\x63\x6b\x65\x74\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x200000ef = 0;
*(uint16_t*)0x200000f0 = 0x38;
memcpy((void*)0x200000f2, "\x44\x4e\x41\x54\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x2000010f = 0;
*(uint32_t*)0x20000110 = 1;
*(uint32_t*)0x20000114 = 0;
*(uint32_t*)0x20000118 = htobe32(0);
*(uint8_t*)0x2000011c = 0xac;
*(uint8_t*)0x2000011d = 0x14;
*(uint8_t*)0x2000011e = -1;
*(uint8_t*)0x2000011f = 0xbb;
*(uint16_t*)0x20000120 = htobe16(0);
*(uint16_t*)0x20000122 = htobe16(0);
*(uint8_t*)0x20000128 = 0;
*(uint8_t*)0x20000129 = 0;
*(uint8_t*)0x2000012a = 0;
*(uint8_t*)0x2000012b = 0;
*(uint8_t*)0x2000012c = 0;
*(uint8_t*)0x2000012d = 0;
*(uint8_t*)0x2000012e = 0;
*(uint8_t*)0x2000012f = 0;
*(uint8_t*)0x20000130 = 0;
*(uint8_t*)0x20000131 = 0;
*(uint8_t*)0x20000132 = 0;
*(uint8_t*)0x20000133 = 0;
*(uint8_t*)0x20000134 = 0;
*(uint8_t*)0x20000135 = 0;
*(uint8_t*)0x20000136 = 0;
*(uint8_t*)0x20000137 = 0;
*(uint8_t*)0x20000138 = 0;
*(uint8_t*)0x20000139 = 0;
*(uint8_t*)0x2000013a = 0;
*(uint8_t*)0x2000013b = 0;
*(uint8_t*)0x2000013c = 0;
*(uint8_t*)0x2000013d = 0;
*(uint8_t*)0x2000013e = 0;
*(uint8_t*)0x2000013f = 0;
*(uint8_t*)0x20000140 = 0;
*(uint8_t*)0x20000141 = 0;
*(uint8_t*)0x20000142 = 0;
*(uint8_t*)0x20000143 = 0;
*(uint8_t*)0x20000144 = 0;
*(uint8_t*)0x20000145 = 0;
*(uint8_t*)0x20000146 = 0;
*(uint8_t*)0x20000147 = 0;
*(uint8_t*)0x20000148 = 0;
*(uint8_t*)0x20000149 = 0;
*(uint8_t*)0x2000014a = 0;
*(uint8_t*)0x2000014b = 0;
*(uint8_t*)0x2000014c = 0;
*(uint8_t*)0x2000014d = 0;
*(uint8_t*)0x2000014e = 0;
*(uint8_t*)0x2000014f = 0;
*(uint8_t*)0x20000150 = 0;
*(uint8_t*)0x20000151 = 0;
*(uint8_t*)0x20000152 = 0;
*(uint8_t*)0x20000153 = 0;
*(uint8_t*)0x20000154 = 0;
*(uint8_t*)0x20000155 = 0;
*(uint8_t*)0x20000156 = 0;
*(uint8_t*)0x20000157 = 0;
*(uint8_t*)0x20000158 = 0;
*(uint8_t*)0x20000159 = 0;
*(uint8_t*)0x2000015a = 0;
*(uint8_t*)0x2000015b = 0;
*(uint8_t*)0x2000015c = 0;
*(uint8_t*)0x2000015d = 0;
*(uint8_t*)0x2000015e = 0;
*(uint8_t*)0x2000015f = 0;
*(uint8_t*)0x20000160 = 0;
*(uint8_t*)0x20000161 = 0;
*(uint8_t*)0x20000162 = 0;
*(uint8_t*)0x20000163 = 0;
*(uint8_t*)0x20000164 = 0;
*(uint8_t*)0x20000165 = 0;
*(uint8_t*)0x20000166 = 0;
*(uint8_t*)0x20000167 = 0;
*(uint8_t*)0x20000168 = 0;
*(uint8_t*)0x20000169 = 0;
*(uint8_t*)0x2000016a = 0;
*(uint8_t*)0x2000016b = 0;
*(uint8_t*)0x2000016c = 0;
*(uint8_t*)0x2000016d = 0;
*(uint8_t*)0x2000016e = 0;
*(uint8_t*)0x2000016f = 0;
*(uint8_t*)0x20000170 = 0;
*(uint8_t*)0x20000171 = 0;
*(uint8_t*)0x20000172 = 0;
*(uint8_t*)0x20000173 = 0;
*(uint8_t*)0x20000174 = 0;
*(uint8_t*)0x20000175 = 0;
*(uint8_t*)0x20000176 = 0;
*(uint8_t*)0x20000177 = 0;
*(uint8_t*)0x20000178 = 0;
*(uint8_t*)0x20000179 = 0;
*(uint8_t*)0x2000017a = 0;
*(uint8_t*)0x2000017b = 0;
*(uint32_t*)0x2000017c = 0;
*(uint16_t*)0x20000180 = 0x70;
*(uint16_t*)0x20000182 = 0xa8;
*(uint32_t*)0x20000184 = 0;
*(uint64_t*)0x20000188 = 0;
*(uint64_t*)0x20000190 = 0;
*(uint16_t*)0x20000198 = 0x38;
memcpy((void*)0x2000019a, "\x52\x45\x44\x49\x52\x45\x43\x54\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x200001b7 = 0;
*(uint32_t*)0x200001b8 = 1;
*(uint32_t*)0x200001bc = 0;
*(uint8_t*)0x200001c0 = 0xac;
*(uint8_t*)0x200001c1 = 0x14;
*(uint8_t*)0x200001c2 = -1;
*(uint8_t*)0x200001c3 = 0xbb;
*(uint32_t*)0x200001c4 = htobe32(0xe0000001);
*(uint16_t*)0x200001c8 = htobe16(0);
*(uint16_t*)0x200001ca = 0;
*(uint8_t*)0x200001d0 = 0;
*(uint8_t*)0x200001d1 = 0;
*(uint8_t*)0x200001d2 = 0;
*(uint8_t*)0x200001d3 = 0;
*(uint8_t*)0x200001d4 = 0;
*(uint8_t*)0x200001d5 = 0;
*(uint8_t*)0x200001d6 = 0;
*(uint8_t*)0x200001d7 = 0;
*(uint8_t*)0x200001d8 = 0;
*(uint8_t*)0x200001d9 = 0;
*(uint8_t*)0x200001da = 0;
*(uint8_t*)0x200001db = 0;
*(uint8_t*)0x200001dc = 0;
*(uint8_t*)0x200001dd = 0;
*(uint8_t*)0x200001de = 0;
*(uint8_t*)0x200001df = 0;
*(uint8_t*)0x200001e0 = 0;
*(uint8_t*)0x200001e1 = 0;
*(uint8_t*)0x200001e2 = 0;
*(uint8_t*)0x200001e3 = 0;
*(uint8_t*)0x200001e4 = 0;
*(uint8_t*)0x200001e5 = 0;
*(uint8_t*)0x200001e6 = 0;
*(uint8_t*)0x200001e7 = 0;
*(uint8_t*)0x200001e8 = 0;
*(uint8_t*)0x200001e9 = 0;
*(uint8_t*)0x200001ea = 0;
*(uint8_t*)0x200001eb = 0;
*(uint8_t*)0x200001ec = 0;
*(uint8_t*)0x200001ed = 0;
*(uint8_t*)0x200001ee = 0;
*(uint8_t*)0x200001ef = 0;
*(uint8_t*)0x200001f0 = 0;
*(uint8_t*)0x200001f1 = 0;
*(uint8_t*)0x200001f2 = 0;
*(uint8_t*)0x200001f3 = 0;
*(uint8_t*)0x200001f4 = 0;
*(uint8_t*)0x200001f5 = 0;
*(uint8_t*)0x200001f6 = 0;
*(uint8_t*)0x200001f7 = 0;
*(uint8_t*)0x200001f8 = 0;
*(uint8_t*)0x200001f9 = 0;
*(uint8_t*)0x200001fa = 0;
*(uint8_t*)0x200001fb = 0;
*(uint8_t*)0x200001fc = 0;
*(uint8_t*)0x200001fd = 0;
*(uint8_t*)0x200001fe = 0;
*(uint8_t*)0x200001ff = 0;
*(uint8_t*)0x20000200 = 0;
*(uint8_t*)0x20000201 = 0;
*(uint8_t*)0x20000202 = 0;
*(uint8_t*)0x20000203 = 0;
*(uint8_t*)0x20000204 = 0;
*(uint8_t*)0x20000205 = 0;
*(uint8_t*)0x20000206 = 0;
*(uint8_t*)0x20000207 = 0;
*(uint8_t*)0x20000208 = 0;
*(uint8_t*)0x20000209 = 0;
*(uint8_t*)0x2000020a = 0;
*(uint8_t*)0x2000020b = 0;
*(uint8_t*)0x2000020c = 0;
*(uint8_t*)0x2000020d = 0;
*(uint8_t*)0x2000020e = 0;
*(uint8_t*)0x2000020f = 0;
*(uint8_t*)0x20000210 = 0;
*(uint8_t*)0x20000211 = 0;
*(uint8_t*)0x20000212 = 0;
*(uint8_t*)0x20000213 = 0;
*(uint8_t*)0x20000214 = 0;
*(uint8_t*)0x20000215 = 0;
*(uint8_t*)0x20000216 = 0;
*(uint8_t*)0x20000217 = 0;
*(uint8_t*)0x20000218 = 0;
*(uint8_t*)0x20000219 = 0;
*(uint8_t*)0x2000021a = 0;
*(uint8_t*)0x2000021b = 0;
*(uint8_t*)0x2000021c = 0;
*(uint8_t*)0x2000021d = 0;
*(uint8_t*)0x2000021e = 0;
*(uint8_t*)0x2000021f = 0;
*(uint8_t*)0x20000220 = 0;
*(uint8_t*)0x20000221 = 0;
*(uint8_t*)0x20000222 = 0;
*(uint8_t*)0x20000223 = 0;
*(uint32_t*)0x20000224 = 0;
*(uint16_t*)0x20000228 = 0x70;
*(uint16_t*)0x2000022a = 0xa8;
*(uint32_t*)0x2000022c = 0;
*(uint64_t*)0x20000230 = 0;
*(uint64_t*)0x20000238 = 0;
*(uint16_t*)0x20000240 = 0x38;
memcpy((void*)0x20000242, "\x4e\x45\x54\x4d\x41\x50\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x2000025f = 0;
*(uint32_t*)0x20000260 = 1;
*(uint32_t*)0x20000264 = 9;
*(uint32_t*)0x20000268 = htobe32(0xe0000002);
*(uint8_t*)0x2000026c = 0xac;
*(uint8_t*)0x2000026d = 0x14;
*(uint8_t*)0x2000026e = -1;
*(uint8_t*)0x2000026f = 0xaa;
*(uint16_t*)0x20000270 = htobe16(0);
*(uint16_t*)0x20000272 = htobe16(0);
*(uint8_t*)0x20000278 = 0;
*(uint8_t*)0x20000279 = 0;
*(uint8_t*)0x2000027a = 0;
*(uint8_t*)0x2000027b = 0;
*(uint8_t*)0x2000027c = 0;
*(uint8_t*)0x2000027d = 0;
*(uint8_t*)0x2000027e = 0;
*(uint8_t*)0x2000027f = 0;
*(uint8_t*)0x20000280 = 0;
*(uint8_t*)0x20000281 = 0;
*(uint8_t*)0x20000282 = 0;
*(uint8_t*)0x20000283 = 0;
*(uint8_t*)0x20000284 = 0;
*(uint8_t*)0x20000285 = 0;
*(uint8_t*)0x20000286 = 0;
*(uint8_t*)0x20000287 = 0;
*(uint8_t*)0x20000288 = 0;
*(uint8_t*)0x20000289 = 0;
*(uint8_t*)0x2000028a = 0;
*(uint8_t*)0x2000028b = 0;
*(uint8_t*)0x2000028c = 0;
*(uint8_t*)0x2000028d = 0;
*(uint8_t*)0x2000028e = 0;
*(uint8_t*)0x2000028f = 0;
*(uint8_t*)0x20000290 = 0;
*(uint8_t*)0x20000291 = 0;
*(uint8_t*)0x20000292 = 0;
*(uint8_t*)0x20000293 = 0;
*(uint8_t*)0x20000294 = 0;
*(uint8_t*)0x20000295 = 0;
*(uint8_t*)0x20000296 = 0;
*(uint8_t*)0x20000297 = 0;
*(uint8_t*)0x20000298 = 0;
*(uint8_t*)0x20000299 = 0;
*(uint8_t*)0x2000029a = 0;
*(uint8_t*)0x2000029b = 0;
*(uint8_t*)0x2000029c = 0;
*(uint8_t*)0x2000029d = 0;
*(uint8_t*)0x2000029e = 0;
*(uint8_t*)0x2000029f = 0;
*(uint8_t*)0x200002a0 = 0;
*(uint8_t*)0x200002a1 = 0;
*(uint8_t*)0x200002a2 = 0;
*(uint8_t*)0x200002a3 = 0;
*(uint8_t*)0x200002a4 = 0;
*(uint8_t*)0x200002a5 = 0;
*(uint8_t*)0x200002a6 = 0;
*(uint8_t*)0x200002a7 = 0;
*(uint8_t*)0x200002a8 = 0;
*(uint8_t*)0x200002a9 = 0;
*(uint8_t*)0x200002aa = 0;
*(uint8_t*)0x200002ab = 0;
*(uint8_t*)0x200002ac = 0;
*(uint8_t*)0x200002ad = 0;
*(uint8_t*)0x200002ae = 0;
*(uint8_t*)0x200002af = 0;
*(uint8_t*)0x200002b0 = 0;
*(uint8_t*)0x200002b1 = 0;
*(uint8_t*)0x200002b2 = 0;
*(uint8_t*)0x200002b3 = 0;
*(uint8_t*)0x200002b4 = 0;
*(uint8_t*)0x200002b5 = 0;
*(uint8_t*)0x200002b6 = 0;
*(uint8_t*)0x200002b7 = 0;
*(uint8_t*)0x200002b8 = 0;
*(uint8_t*)0x200002b9 = 0;
*(uint8_t*)0x200002ba = 0;
*(uint8_t*)0x200002bb = 0;
*(uint8_t*)0x200002bc = 0;
*(uint8_t*)0x200002bd = 0;
*(uint8_t*)0x200002be = 0;
*(uint8_t*)0x200002bf = 0;
*(uint8_t*)0x200002c0 = 0;
*(uint8_t*)0x200002c1 = 0;
*(uint8_t*)0x200002c2 = 0;
*(uint8_t*)0x200002c3 = 0;
*(uint8_t*)0x200002c4 = 0;
*(uint8_t*)0x200002c5 = 0;
*(uint8_t*)0x200002c6 = 0;
*(uint8_t*)0x200002c7 = 0;
*(uint8_t*)0x200002c8 = 0;
*(uint8_t*)0x200002c9 = 0;
*(uint8_t*)0x200002ca = 0;
*(uint8_t*)0x200002cb = 0;
*(uint32_t*)0x200002cc = 0;
*(uint16_t*)0x200002d0 = 0x70;
*(uint16_t*)0x200002d2 = 0xa8;
*(uint32_t*)0x200002d4 = 0;
*(uint64_t*)0x200002d8 = 0;
*(uint64_t*)0x200002e0 = 0;
*(uint16_t*)0x200002e8 = 0x38;
memcpy((void*)0x200002ea, "\x4e\x45\x54\x4d\x41\x50\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x20000307 = 0;
*(uint32_t*)0x20000308 = 1;
*(uint32_t*)0x2000030c = 5;
*(uint8_t*)0x20000310 = 0xac;
*(uint8_t*)0x20000311 = 0x14;
*(uint8_t*)0x20000312 = -1;
*(uint8_t*)0x20000313 = 0xaa;
*(uint8_t*)0x20000314 = 0xac;
*(uint8_t*)0x20000315 = 0x14;
*(uint8_t*)0x20000316 = 0;
*(uint8_t*)0x20000317 = 0;
*(uint16_t*)0x20000318 = htobe16(0);
*(uint16_t*)0x2000031a = 0;
*(uint8_t*)0x20000320 = 0;
*(uint8_t*)0x20000321 = 0;
*(uint8_t*)0x20000322 = 0;
*(uint8_t*)0x20000323 = 0;
*(uint8_t*)0x20000324 = 0;
*(uint8_t*)0x20000325 = 0;
*(uint8_t*)0x20000326 = 0;
*(uint8_t*)0x20000327 = 0;
*(uint8_t*)0x20000328 = 0;
*(uint8_t*)0x20000329 = 0;
*(uint8_t*)0x2000032a = 0;
*(uint8_t*)0x2000032b = 0;
*(uint8_t*)0x2000032c = 0;
*(uint8_t*)0x2000032d = 0;
*(uint8_t*)0x2000032e = 0;
*(uint8_t*)0x2000032f = 0;
*(uint8_t*)0x20000330 = 0;
*(uint8_t*)0x20000331 = 0;
*(uint8_t*)0x20000332 = 0;
*(uint8_t*)0x20000333 = 0;
*(uint8_t*)0x20000334 = 0;
*(uint8_t*)0x20000335 = 0;
*(uint8_t*)0x20000336 = 0;
*(uint8_t*)0x20000337 = 0;
*(uint8_t*)0x20000338 = 0;
*(uint8_t*)0x20000339 = 0;
*(uint8_t*)0x2000033a = 0;
*(uint8_t*)0x2000033b = 0;
*(uint8_t*)0x2000033c = 0;
*(uint8_t*)0x2000033d = 0;
*(uint8_t*)0x2000033e = 0;
*(uint8_t*)0x2000033f = 0;
*(uint8_t*)0x20000340 = 0;
*(uint8_t*)0x20000341 = 0;
*(uint8_t*)0x20000342 = 0;
*(uint8_t*)0x20000343 = 0;
*(uint8_t*)0x20000344 = 0;
*(uint8_t*)0x20000345 = 0;
*(uint8_t*)0x20000346 = 0;
*(uint8_t*)0x20000347 = 0;
*(uint8_t*)0x20000348 = 0;
*(uint8_t*)0x20000349 = 0;
*(uint8_t*)0x2000034a = 0;
*(uint8_t*)0x2000034b = 0;
*(uint8_t*)0x2000034c = 0;
*(uint8_t*)0x2000034d = 0;
*(uint8_t*)0x2000034e = 0;
*(uint8_t*)0x2000034f = 0;
*(uint8_t*)0x20000350 = 0;
*(uint8_t*)0x20000351 = 0;
*(uint8_t*)0x20000352 = 0;
*(uint8_t*)0x20000353 = 0;
*(uint8_t*)0x20000354 = 0;
*(uint8_t*)0x20000355 = 0;
*(uint8_t*)0x20000356 = 0;
*(uint8_t*)0x20000357 = 0;
*(uint8_t*)0x20000358 = 0;
*(uint8_t*)0x20000359 = 0;
*(uint8_t*)0x2000035a = 0;
*(uint8_t*)0x2000035b = 0;
*(uint8_t*)0x2000035c = 0;
*(uint8_t*)0x2000035d = 0;
*(uint8_t*)0x2000035e = 0;
*(uint8_t*)0x2000035f = 0;
*(uint8_t*)0x20000360 = 0;
*(uint8_t*)0x20000361 = 0;
*(uint8_t*)0x20000362 = 0;
*(uint8_t*)0x20000363 = 0;
*(uint8_t*)0x20000364 = 0;
*(uint8_t*)0x20000365 = 0;
*(uint8_t*)0x20000366 = 0;
*(uint8_t*)0x20000367 = 0;
*(uint8_t*)0x20000368 = 0;
*(uint8_t*)0x20000369 = 0;
*(uint8_t*)0x2000036a = 0;
*(uint8_t*)0x2000036b = 0;
*(uint8_t*)0x2000036c = 0;
*(uint8_t*)0x2000036d = 0;
*(uint8_t*)0x2000036e = 0;
*(uint8_t*)0x2000036f = 0;
*(uint8_t*)0x20000370 = 0;
*(uint8_t*)0x20000371 = 0;
*(uint8_t*)0x20000372 = 0;
*(uint8_t*)0x20000373 = 0;
*(uint32_t*)0x20000374 = 0;
*(uint16_t*)0x20000378 = 0x70;
*(uint16_t*)0x2000037a = 0x98;
*(uint32_t*)0x2000037c = 0;
*(uint64_t*)0x20000380 = 0;
*(uint64_t*)0x20000388 = 0;
*(uint16_t*)0x20000390 = 0x28;
memcpy((void*)0x20000392, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00",
29);
*(uint8_t*)0x200003af = 0;
*(uint32_t*)0x200003b0 = 0xfffffffe;
syscall(__NR_setsockopt, r[0], 0, 0x40, 0x20000000, 0x3b8);
break;
case 3:
*(uint8_t*)0x20007000 = 0xaa;
*(uint8_t*)0x20007001 = 0xaa;
*(uint8_t*)0x20007002 = 0xaa;
*(uint8_t*)0x20007003 = 0xaa;
*(uint8_t*)0x20007004 = 0xaa;
*(uint8_t*)0x20007005 = 0xaa;
memcpy((void*)0x20007006, "\xcf\x2b\xb4\x3c\x40\xb8", 6);
*(uint16_t*)0x2000700c = htobe16(0x800);
STORE_BY_BITMASK(uint8_t, 0x2000700e, 5, 0, 4);
STORE_BY_BITMASK(uint8_t, 0x2000700e, 4, 4, 4);
STORE_BY_BITMASK(uint8_t, 0x2000700f, 0, 0, 2);
STORE_BY_BITMASK(uint8_t, 0x2000700f, 0, 2, 6);
*(uint16_t*)0x20007010 = htobe16(0x28);
*(uint16_t*)0x20007012 = htobe16(0);
*(uint16_t*)0x20007014 = htobe16(0);
*(uint8_t*)0x20007016 = 0;
*(uint8_t*)0x20007017 = 6;
*(uint16_t*)0x20007018 = 0;
*(uint8_t*)0x2000701a = 0xac;
*(uint8_t*)0x2000701b = 0x23;
*(uint8_t*)0x2000701c = -1;
*(uint8_t*)0x2000701d = 0xaa;
*(uint32_t*)0x2000701e = htobe32(0xe0000001);
*(uint16_t*)0x20007022 = htobe16(0x4e20);
*(uint16_t*)0x20007024 = htobe16(0x4e20);
*(uint32_t*)0x20007026 = 0x42424242;
*(uint32_t*)0x2000702a = 0x42424242;
STORE_BY_BITMASK(uint8_t, 0x2000702e, 0, 0, 1);
STORE_BY_BITMASK(uint8_t, 0x2000702e, 0, 1, 3);
STORE_BY_BITMASK(uint8_t, 0x2000702e, 5, 4, 4);
*(uint8_t*)0x2000702f = 0x22;
*(uint16_t*)0x20007030 = htobe16(0);
*(uint16_t*)0x20007032 = 0;
*(uint16_t*)0x20007034 = htobe16(0);
struct csum_inet csum_1;
csum_inet_init(&csum_1);
csum_inet_update(&csum_1, (const uint8_t*)0x2000701a, 4);
csum_inet_update(&csum_1, (const uint8_t*)0x2000701e, 4);
uint16_t csum_1_chunk_2 = 0x600;
csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_2, 2);
uint16_t csum_1_chunk_3 = 0x1400;
csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_3, 2);
csum_inet_update(&csum_1, (const uint8_t*)0x20007022, 20);
*(uint16_t*)0x20007032 = csum_inet_digest(&csum_1);
struct csum_inet csum_2;
csum_inet_init(&csum_2);
csum_inet_update(&csum_2, (const uint8_t*)0x2000700e, 20);
*(uint16_t*)0x20007018 = csum_inet_digest(&csum_2);
syz_emit_ethernet(0x230, 0x20007000, 0);
break;
case 4:
res = syscall(__NR_socket, 2, 1, 0);
if (res != -1)
r[1] = res;
break;
case 5:
*(uint16_t*)0x20000140 = 2;
*(uint16_t*)0x20000142 = htobe16(0x4e20);
*(uint32_t*)0x20000144 = htobe32(0xe0000001);
*(uint8_t*)0x20000148 = 0;
*(uint8_t*)0x20000149 = 0;
*(uint8_t*)0x2000014a = 0;
*(uint8_t*)0x2000014b = 0;
*(uint8_t*)0x2000014c = 0;
*(uint8_t*)0x2000014d = 0;
*(uint8_t*)0x2000014e = 0;
*(uint8_t*)0x2000014f = 0;
syscall(__NR_bind, r[1], 0x20000140, 0x10);
break;
case 6:
*(uint16_t*)0x20000100 = 2;
*(uint16_t*)0x20000102 = htobe16(0x4e20);
*(uint8_t*)0x20000104 = 0xac;
*(uint8_t*)0x20000105 = 0x14;
*(uint8_t*)0x20000106 = 0x14;
*(uint8_t*)0x20000107 = 0xb;
*(uint8_t*)0x20000108 = 0;
*(uint8_t*)0x20000109 = 0;
*(uint8_t*)0x2000010a = 0;
*(uint8_t*)0x2000010b = 0;
*(uint8_t*)0x2000010c = 0;
*(uint8_t*)0x2000010d = 0;
*(uint8_t*)0x2000010e = 0;
*(uint8_t*)0x2000010f = 0;
syscall(__NR_connect, r[1], 0x20000100, 0x10);
break;
case 7:
memcpy((void*)0x20000040,
"\x74\x75\x6e\x6c\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
16);
syscall(__NR_setsockopt, r[1], 1, 0x19, 0x20000040, 0xc);
break;
}
}
void test()
{
execute(8);
}
int main()
{
syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
for (procid = 0; procid < 8; procid++) {
if (fork() == 0) {
for (;;) {
int pid = do_sandbox_none();
int status = 0;
while (waitpid(pid, &status, __WALL) != pid) {
}
}
}
}
sleep(1000000);
return 0;
}