// https://syzkaller.appspot.com/bug?id=45d463e3ae38f3c38f2c82f0a8c6a2c1c8ce7457 // 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 unsigned long long procid; static void kill_and_wait(int pid, int* status) { kill(pid, SIGKILL); while (waitpid(-1, status, 0) != pid) { } } 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 execute_one(void); #define WAIT_FLAGS 0 static void loop(void) { int iter; for (iter = 0;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { 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; } } } #ifndef SYS_mmap #define SYS_mmap 197 #endif #ifndef SYS_socket #define SYS_socket 394 #endif #ifndef SYS_writev #define SYS_writev 121 #endif uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; res = syscall(SYS_socket, 0x22ul, 0x20000003ul, 0); if (res != -1) r[0] = res; *(uint64_t*)0x200014c0 = 0; *(uint64_t*)0x200014c8 = 0; *(uint64_t*)0x200014d0 = 0; *(uint64_t*)0x200014d8 = 0; *(uint64_t*)0x200014e0 = 0; *(uint64_t*)0x200014e8 = 0; *(uint64_t*)0x200014f0 = 0; *(uint64_t*)0x200014f8 = 0; *(uint64_t*)0x20001500 = 0; *(uint64_t*)0x20001508 = 0; *(uint64_t*)0x20001510 = 0x20000480; memcpy( (void*)0x20000480, "\x9e\x4d\xdb\xc2\x2f\xef\x19\x3a\x4d\x66\x10\x20\xed\x27\xca\x3d\x65\x3d" "\xf9\xc8\x99\x6f\xf3\x8b\x9e\x32\xbf\x4a\xe8\x3a\xac\x5a\x72\x50\xe2\xe9" "\x2a\xb9\x07\x20\xd7\xf4\x7d\x19\xc2\x6c\xe2\x08\xd2\x87\x92\x3f\x84\x42" 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"\x5d\x99\x1f\x9c\x39\x34\x4f\x5a\x9e\x4b\x29\xcb\x95\xc3\x60\x42\x49\x4b" "\x80\x5c\x9b\x30\xd6\xf0\xf3\xf8\x23\x0f\xb4\x47\x38\x00\xbc\xcd\x99\x60" "\x05\x25\x7e\xb8\x48\xd3\xee\x32\x34\xe5\x6f\xa9\x0f\x7a\xd2\x9a\x88\x3a" "\xf6\x72\x52\x17\xbf\x88\xa9\x7a\xd5\x83\x8c\x7f\x3e\x04\x92\xbd\xf1\x17" "\x86\x66\x85\x98\xa1\x50\x66\x41\xf9\xf2\x8a\x7c\x33\xd3\xfe\x5c\x3d\x30" "\x3f\xd5\xf4\xc1\x53\xb0\xac\xc7\x77\x9a\x28\xca\x3f\xac\x90\xb1\x7b\xe7" "\xdb\x71\x3e\xdc\x8a\x16\xb3\x2c\xf2\x98\x40\xdc\xe1\x15\x7d\xdb\x73\xeb" "\x6d\xbb\x91\x86\x13\x26\xaa\xdc\xb7\x0d\x96\x42\xc9\xa6\x09\x85\x3b\xdd" "\x97\xb5\xd1\x0b\x1d\xd6\x59\x2b\x2a\x40\x4f\xf8\x31\x36\xb1\xe6\x54\x61" "\x1e\x2a\x79\x6e\x20\xee\x61\x1a\x32\x0b\xd4\x32\x9f\xb0\xa0\x49\x42\x61" "\xc3\x0b\xc1\x80\x72\x4f\xe2\x41\xc1\x1e\x09\x3a\x95\x2b\x10\x83\x89\x87" "\xc6\x2c\x52\x35\x31\x38\xdc\x8c\x04\xc3\x78\xaf\xef\x90\x34\x56\x7b\xa3" "\x0c\x85\x51\xe2\xd5\xb3\xc5\xc1\x60\xc1\xb4\xc6\x60\xff\xc5\xc7\x65\xd5" 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"\x09\xfd\x64\xae\xe4\x96\xde\xad\x9a\x86\x2b\xc7\x16\x05\x74\xca\xd2\x5b" "\x30\x1d\xe5\x21\x6e\x97\x70\x89\x4d\x3e\xbf\xc1\x64\xc7\x8d\xa4\x67\x82" "\x4f\x31\xb4\x54\xbc\x7d\xdc\x31\xcb\x30\x69\xf6\xee\x39\x8d\xa1\xf0\x9e" "\xad\x73\x84\xf1\x2a\xc1\xf3\x1e\x56\xe4\x74\x40\xf6\x00\xde\xe2\xb6\x21" "\x01\xcd\x8e\x0b\x8b\x49\x5a\x9a\x99\xa9\x6d\x3e\xcd\x43\x74\x1b\x10\x2f" "\x90\xba\x8a\x6a\x05\x8e\x8f\xfc\x8a\x03\x7f\x04\xea\x5d\x55\xc6\x56\x95" "\x6e\x08\xd0\x29\x8e\xa1\xed\x14\x0a\x13\x5b\x14\xb7\x7d\xf5\x64\xfe\x20" "\x72\xd1\xba\xd8\x8c\x5e\xd0\x2f\x9f\xb9\x1a\xa6\xff\x0e\x5d\x0c\x71\xc9" "\xab\x44\xce\x5b\x5e\x1e\xe4\x16\xb2\xfd\x4e\x7b\x58\x82\x20\x10\x9e\xdd" "\x7e\x17\xf4\x79\x0b\xd3\x68\x6b\xc3\xdd\xb4\xe8\x97\x23\xdd\x4f\x77\xfe" "\x01\x19\x02\x7f\x15\x2d\xfd\x14\xb0\x21\x99\x6c\x49\x77\xcc\x1c\xfd\xf8" "\x65\xc9\x6a\x0a\x7e\x1b\xb4\x2d\x33\x9c\xa3\x13\xd8\x71\x20\x0b\x1e\x24" "\x07\xe0\x19\xac\xd8\xa2\x88\xc4\xe4\x89\x63\x79\x1d\xc1\x4a\x91\x3e\xa2" "\xa3\xa1\x7c\xb5\x8e\x07\x80\xbf\x7e\x24\x59\x56\xb7\xec\x1d\xcc\x5f\xb3" "\xcb\xba\xb5\x00\x33\xf0\xea\x99\x00\x9e\x89\xe7\x64\x44\x1b\x8a\x3b\x05" "\xb2\xfe\xc4\xe1\x91\xba\x9c\x60\x83\xa9\x1b\xcf\xc1\x23\x49\x2a\x35\xd9" "\xeb\x0d\x7d\x36\x69\x79\x2b\xa2\x9b\x87\xcb\x71\x08\x3a\x4a\x59\x60\x0a" "\x3c\x53\x35\x40\xc7\xb2\x8e\xb6\xfa\x0b\xc4\x5e\xca\x51\xde\x13\x47\x05" "\x80\x52\x4b\xf0\xc8\x31\xde\x94\xb0\x7f\x6d\xe3\xab\x55\xb1\x98\x89\x0f" "\x38\xb6\x00\x8a\xa9\x50\xc6\x33\x6b\xdf\x20\xea\x39\x83\xcb\x05\xc1\xd6" "\x94\x73\xed\xb4\x92\x31\x1e\xa6\x14\x72\xe0\x42\xf8\xa6\xf0\x27\x31\xd4" "\x35\x00\x50\x31\x23\x6a\x6b\xd2\x8a\x33\xcc\xa0\x0e\xab\xd6\x48\xb6\xbd" "\x40\x50\x4d\xe7\x7b\x58\xd8\xc9\xf0\xda\x7c\xc6\xe3\xd2\xd7\x99\x84\xd9" "\xd1\x39\x53\x2c\x53\x08\x63\x6f\x12\x34\x3a\x58\x05\xcd\xba\x91\xc3\x25" "\xe9\x7b\x28\x67\x4b\xff\xd7\xfc\x55\x53\xba\x87\x6f\xba\xe1\x79\x3f\x95" "\xf0\xaa\xa9\xec\xe3\xf2\x45\x4a\xdf\xdb\x4d\x0b\x24\xea\x92\xcf\x23\xd2" "\x32\xa1\xfa\xbd\x1c\xa8\x60\xbb\x8d\xef\xc8\x6c\x7a\x90\x90\xbc\x05\xa4" "\xa8\x62\x11\x98\x30\xce\x68\x28\xbb\x4e\x57\x52\xe1\x9f\x61\x19\x6b\x71" "\x76\xa6\xe8\x8b\xff\x74\xf3\x56\x56\xa2\x71\x81\xf0\xe8\x55\xff\xa8\xce" "\x82\x80\x83\xf1\xd5\x15\x0f\x33\x82\xa2\x5a\xb8\x7e\xc4\x97\xac\x8f\x4c" "\x92\x4f\x3a\x48\x66\x61\xd9\xae\x01\xc4\xd4\xf0\xcc\xb7\xbb\xd4\xd5\x3c" "\xaa\xff\x9a\x7b\xa7\x7c\xf0\x6a\x22\x6d\xfc\x76\xb2\x2e\xbc\x5e\xd6\x71" "\x99\x5a\xca\xc0\x27\x9a\xeb\x38\x69\xa2\xd2\xd4\x6e\xbd\x5b\x4e\xc7\x68" "\x92\xc1\x19\x82\x7f\xa6\x04\x56\xcb\x9e\x86\x32\xea\x77\xe1\x10\x04\x95" "\x2f\x67\xbc\xd3\x3d\x2c\x52\xbf\x55\x3a\xfd\x3e\x3a\x51\x08\x1f\xa4\x3a" "\x9d\x31\x5f\xe2\xb2\xad\x75\xf7\xf8\xac\x4b\x7c\xf4\x2f\x74\xac\xfb\xad" "\xa5\x0d\x06\x00\x31\xba\x27\x12\xa4\xf8\x73\x7b\xd2\x7a\x14\x92\x9d\x00" "\x0a\xaa\xdc\x97\x34\xc2\x27\x71\x58\xb7\xab\xa7\xfc\x7e\x94\x71\xdd\x63" "\xe3\xdf\x74\x6a\xe3\xc0\x6b\x20\x4c\xd8\x8a\x22\x63\xca\x13\x8f\x37\xbf" "\x20\x53\x22\x74\x7e\xa7\x6b\x36\x5d\x2c\xc2\xac\xe9\x28\x8f\x40\xe4\x70" "\x1b\x2d\xa9\xfb\xbe\x04\x00\x9b\x6f\x3a\xaf\xde\xfc\xc0\xdd\xdf\xc2\x1f" "\x2e\xf3\x02\xd2\x5a\x14\x64\x1c\xb7\xbd\xc8\xfe\xb8\x73\xb0\x49\xeb\xee" "\xdb\xe9\xba\x5a\x60\x5f\x14\x88\x50\x89", 4096); *(uint64_t*)0x20001518 = 0x1000; *(uint64_t*)0x20001520 = 0; *(uint64_t*)0x20001528 = 0; syscall(SYS_writev, r[0], 0x200014c0ul, 7ul); } int main(void) { syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { loop(); } } sleep(1000000); return 0; }