// https://syzkaller.appspot.com/bug?id=27ba7fbc34f9b61adecf2615022db00a6fb61211 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include unsigned long long procid; 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 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_TEST 1 static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); } #define SYZ_HAVE_RESET_TEST 1 static void reset_test() { int fd; for (fd = 3; fd < 30; fd++) close(fd); } 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(); 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; } } } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { long res = 0; res = syscall(__NR_socket, 0x26, 5, 0); if (res != -1) r[0] = res; *(uint16_t*)0x20000040 = 0x26; memcpy((void*)0x20000042, "aead\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14); *(uint32_t*)0x20000050 = 0; *(uint32_t*)0x20000054 = 0; memcpy((void*)0x20000058, "pcrypt(generic-gcm-aesni)" "\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", 64); syscall(__NR_bind, r[0], 0x20000040, 0x58); res = syscall(__NR_socket, 0xa, 1, 0); if (res != -1) r[1] = res; res = syscall(__NR_socket, 0xa, 1, 0); if (res != -1) r[2] = res; *(uint16_t*)0x20000040 = 0xa; *(uint16_t*)0x20000042 = htobe16(0x4e22); *(uint32_t*)0x20000044 = 0; *(uint8_t*)0x20000048 = 0; *(uint8_t*)0x20000049 = 0; *(uint8_t*)0x2000004a = 0; *(uint8_t*)0x2000004b = 0; *(uint8_t*)0x2000004c = 0; *(uint8_t*)0x2000004d = 0; *(uint8_t*)0x2000004e = 0; *(uint8_t*)0x2000004f = 0; *(uint8_t*)0x20000050 = 0; *(uint8_t*)0x20000051 = 0; *(uint8_t*)0x20000052 = 0; *(uint8_t*)0x20000053 = 0; *(uint8_t*)0x20000054 = 0; *(uint8_t*)0x20000055 = 0; *(uint8_t*)0x20000056 = 0; *(uint8_t*)0x20000057 = 0; *(uint32_t*)0x20000058 = 0; syscall(__NR_bind, r[2], 0x20000040, 0x1c); syscall(__NR_listen, r[2], 0); *(uint16_t*)0x20000080 = 0xa; *(uint16_t*)0x20000082 = htobe16(0x4e22); *(uint32_t*)0x20000084 = 0; *(uint64_t*)0x20000088 = htobe64(0); *(uint64_t*)0x20000090 = htobe64(1); *(uint32_t*)0x20000098 = 0; syscall(__NR_sendto, r[1], 0, 0, 0x20000004, 0x20000080, 0x1c); memcpy((void*)0x20000080, "tls\x00", 4); syscall(__NR_setsockopt, r[1], 6, 0x1f, 0x20000080, 0x152); *(uint16_t*)0x20000100 = 0x303; *(uint16_t*)0x20000102 = 0x33; syscall(__NR_setsockopt, r[1], 0x11a, 1, 0x20000100, 0x28); syscall(__NR_sendto, r[1], 0x200005c0, 0xe0ffffff, 0, 0, 0); } int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { loop(); } } sleep(1000000); return 0; }