| // WARNING in xfrm_policy_insert |
| // https://syzkaller.appspot.com/bug?id=4851459211256681c25aea897c487cf2a643ec96 |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <dirent.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/prctl.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| 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 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 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) { |
| } |
| } |
| |
| static void setup_test() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| write_file("/proc/self/oom_score_adj", "1000"); |
| } |
| |
| static void execute_one(void); |
| |
| #define WAIT_FLAGS __WALL |
| |
| static void loop(void) |
| { |
| int iter; |
| for (iter = 0;; iter++) { |
| int pid = fork(); |
| if (pid < 0) |
| exit(1); |
| if (pid == 0) { |
| setup_test(); |
| execute_one(); |
| 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; |
| } |
| } |
| } |
| |
| uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; |
| |
| void execute_one(void) |
| { |
| intptr_t res = 0; |
| res = syscall(__NR_socket, 0x10, 3, 6); |
| if (res != -1) |
| r[0] = res; |
| *(uint64_t*)0x20000280 = 0; |
| *(uint32_t*)0x20000288 = 0; |
| *(uint64_t*)0x20000290 = 0x20001a40; |
| *(uint64_t*)0x20001a40 = 0x20000040; |
| memcpy((void*)0x20000040, |
| "\xc4\x00\x00\x00\x19\x00\x25\x0a\x00\x00\x00\x00\x00\x00\x00\x00\xfe" |
| "\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xfe\x80" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00", |
| 64); |
| *(uint32_t*)0x20000080 = 0; |
| *(uint32_t*)0x20000084 = 0; |
| memcpy((void*)0x20000088, |
| "\x00\x40\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\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\x00\x00\x00\x00\xf4\xff\xff\xff" |
| "\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\x00\x00\x10\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\xe8\x10\x92\x22\x3d\xd6" |
| "\xd8\xc9\xc2\x4f\xeb\x0f\x27\x00\x15\x00\x00\x00\x00\x00\x01\x00\x00" |
| "\x00", |
| 137); |
| *(uint64_t*)0x20001a48 = 0xc4; |
| *(uint64_t*)0x20000298 = 1; |
| *(uint64_t*)0x200002a0 = 0; |
| *(uint64_t*)0x200002a8 = 0; |
| *(uint32_t*)0x200002b0 = 0; |
| syscall(__NR_sendmsg, r[0], 0x20000280, 0); |
| res = syscall(__NR_socket, 0x10, 3, 6); |
| if (res != -1) |
| r[1] = res; |
| res = syscall(__NR_socket, 0x10, 3, 6); |
| if (res != -1) |
| r[2] = res; |
| *(uint64_t*)0x20000280 = 0; |
| *(uint32_t*)0x20000288 = 0; |
| *(uint64_t*)0x20000290 = 0x20001a40; |
| *(uint64_t*)0x20001a40 = 0x200073c0; |
| *(uint32_t*)0x200073c0 = 0xc4; |
| *(uint16_t*)0x200073c4 = 0x19; |
| *(uint16_t*)0x200073c6 = 0xa25; |
| *(uint32_t*)0x200073c8 = 0; |
| *(uint32_t*)0x200073cc = 0; |
| *(uint8_t*)0x200073d0 = 0xfe; |
| *(uint8_t*)0x200073d1 = 0x80; |
| *(uint8_t*)0x200073d2 = 0; |
| *(uint8_t*)0x200073d3 = 0; |
| *(uint8_t*)0x200073d4 = 0; |
| *(uint8_t*)0x200073d5 = 0; |
| *(uint8_t*)0x200073d6 = 0; |
| *(uint8_t*)0x200073d7 = 0; |
| *(uint8_t*)0x200073d8 = 0; |
| *(uint8_t*)0x200073d9 = 0; |
| *(uint8_t*)0x200073da = 0; |
| *(uint8_t*)0x200073db = 0; |
| *(uint8_t*)0x200073dc = 0; |
| *(uint8_t*)0x200073dd = 0; |
| *(uint8_t*)0x200073de = 0; |
| *(uint8_t*)0x200073df = 0xaa; |
| *(uint8_t*)0x200073e0 = 0xfe; |
| *(uint8_t*)0x200073e1 = 0x80; |
| *(uint8_t*)0x200073e2 = 0; |
| *(uint8_t*)0x200073e3 = 0; |
| *(uint8_t*)0x200073e4 = 0; |
| *(uint8_t*)0x200073e5 = 0; |
| *(uint8_t*)0x200073e6 = 0; |
| *(uint8_t*)0x200073e7 = 0; |
| *(uint8_t*)0x200073e8 = 0; |
| *(uint8_t*)0x200073e9 = 0; |
| *(uint8_t*)0x200073ea = 0; |
| *(uint8_t*)0x200073eb = 0; |
| *(uint8_t*)0x200073ec = 0; |
| *(uint8_t*)0x200073ed = 0; |
| *(uint8_t*)0x200073ee = 0; |
| *(uint8_t*)0x200073ef = 0; |
| *(uint16_t*)0x200073f0 = htobe16(0); |
| *(uint16_t*)0x200073f2 = htobe16(0); |
| *(uint16_t*)0x200073f4 = htobe16(0); |
| *(uint16_t*)0x200073f6 = htobe16(0); |
| *(uint16_t*)0x200073f8 = 0xa; |
| *(uint8_t*)0x200073fa = 0; |
| *(uint8_t*)0x200073fb = 0; |
| *(uint8_t*)0x200073fc = 0; |
| *(uint32_t*)0x20007400 = 0; |
| *(uint32_t*)0x20007404 = 0; |
| *(uint64_t*)0x20007408 = 0; |
| *(uint64_t*)0x20007410 = 0; |
| *(uint64_t*)0x20007418 = 0; |
| *(uint64_t*)0x20007420 = 0; |
| *(uint64_t*)0x20007428 = 0; |
| *(uint64_t*)0x20007430 = 0; |
| *(uint64_t*)0x20007438 = 0; |
| *(uint64_t*)0x20007440 = 0; |
| *(uint64_t*)0x20007448 = 0; |
| *(uint64_t*)0x20007450 = 0; |
| *(uint64_t*)0x20007458 = 0; |
| *(uint64_t*)0x20007460 = 0; |
| *(uint32_t*)0x20007468 = 0; |
| *(uint32_t*)0x2000746c = 0; |
| *(uint8_t*)0x20007470 = 0; |
| *(uint8_t*)0x20007471 = 0; |
| *(uint8_t*)0x20007472 = 0; |
| *(uint8_t*)0x20007473 = 0; |
| *(uint16_t*)0x20007478 = 0xc; |
| *(uint16_t*)0x2000747a = 0x15; |
| *(uint32_t*)0x2000747c = 0; |
| *(uint32_t*)0x20007480 = 1; |
| *(uint64_t*)0x20001a48 = 0xc4; |
| *(uint64_t*)0x20000298 = 1; |
| *(uint64_t*)0x200002a0 = 0; |
| *(uint64_t*)0x200002a8 = 0; |
| *(uint32_t*)0x200002b0 = 0; |
| syscall(__NR_sendmsg, r[2], 0x20000280, 0); |
| *(uint64_t*)0x20000280 = 0; |
| *(uint32_t*)0x20000288 = 0; |
| *(uint64_t*)0x20000290 = 0x20001a40; |
| *(uint64_t*)0x20001a40 = 0x200073c0; |
| *(uint32_t*)0x200073c0 = 0xb8; |
| *(uint16_t*)0x200073c4 = 0x19; |
| *(uint16_t*)0x200073c6 = 0xa25; |
| *(uint32_t*)0x200073c8 = 0; |
| *(uint32_t*)0x200073cc = 0; |
| *(uint8_t*)0x200073d0 = 0xfe; |
| *(uint8_t*)0x200073d1 = 0x80; |
| *(uint8_t*)0x200073d2 = 0; |
| *(uint8_t*)0x200073d3 = 0; |
| *(uint8_t*)0x200073d4 = 0; |
| *(uint8_t*)0x200073d5 = 0; |
| *(uint8_t*)0x200073d6 = 0; |
| *(uint8_t*)0x200073d7 = 0; |
| *(uint8_t*)0x200073d8 = 0; |
| *(uint8_t*)0x200073d9 = 0; |
| *(uint8_t*)0x200073da = 0; |
| *(uint8_t*)0x200073db = 0; |
| *(uint8_t*)0x200073dc = 0; |
| *(uint8_t*)0x200073dd = 0; |
| *(uint8_t*)0x200073de = 0; |
| *(uint8_t*)0x200073df = 0xaa; |
| *(uint8_t*)0x200073e0 = 0xfe; |
| *(uint8_t*)0x200073e1 = 0x80; |
| *(uint8_t*)0x200073e2 = 0; |
| *(uint8_t*)0x200073e3 = 0; |
| *(uint8_t*)0x200073e4 = 0; |
| *(uint8_t*)0x200073e5 = 0; |
| *(uint8_t*)0x200073e6 = 0; |
| *(uint8_t*)0x200073e7 = 0; |
| *(uint8_t*)0x200073e8 = 0; |
| *(uint8_t*)0x200073e9 = 0; |
| *(uint8_t*)0x200073ea = 0; |
| *(uint8_t*)0x200073eb = 0; |
| *(uint8_t*)0x200073ec = 0; |
| *(uint8_t*)0x200073ed = 0; |
| *(uint8_t*)0x200073ee = 0; |
| *(uint8_t*)0x200073ef = 0; |
| *(uint16_t*)0x200073f0 = htobe16(0); |
| *(uint16_t*)0x200073f2 = htobe16(0); |
| *(uint16_t*)0x200073f4 = htobe16(0); |
| *(uint16_t*)0x200073f6 = htobe16(0); |
| *(uint16_t*)0x200073f8 = 0xa; |
| *(uint8_t*)0x200073fa = 0; |
| *(uint8_t*)0x200073fb = 0; |
| *(uint8_t*)0x200073fc = 0; |
| *(uint32_t*)0x20007400 = 0; |
| *(uint32_t*)0x20007404 = 0; |
| *(uint64_t*)0x20007408 = 0; |
| *(uint64_t*)0x20007410 = 0; |
| *(uint64_t*)0x20007418 = 0; |
| *(uint64_t*)0x20007420 = 0; |
| *(uint64_t*)0x20007428 = 0x10000; |
| *(uint64_t*)0x20007430 = 0; |
| *(uint64_t*)0x20007438 = 0; |
| *(uint64_t*)0x20007440 = 0; |
| *(uint64_t*)0x20007448 = 0xfffffffffffffffd; |
| *(uint64_t*)0x20007450 = 0; |
| *(uint64_t*)0x20007458 = 0; |
| *(uint64_t*)0x20007460 = 0; |
| *(uint32_t*)0x20007468 = 0; |
| *(uint32_t*)0x2000746c = 0; |
| *(uint8_t*)0x20007470 = 0; |
| *(uint8_t*)0x20007471 = 0; |
| *(uint8_t*)0x20007472 = 0; |
| *(uint8_t*)0x20007473 = 0; |
| *(uint64_t*)0x20001a48 = 0xb8; |
| *(uint64_t*)0x20000298 = 1; |
| *(uint64_t*)0x200002a0 = 0; |
| *(uint64_t*)0x200002a8 = 0; |
| *(uint32_t*)0x200002b0 = 0x20008946; |
| syscall(__NR_sendmsg, r[1], 0x20000280, 0); |
| } |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| loop(); |
| return 0; |
| } |