// https://syzkaller.appspot.com/bug?id=e94de72534b46ee21d40a7f3cd90793f97754b49 // 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 static 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_write #define SYS_write 4 #endif uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; res = syscall(SYS_socket, 0x10000000011ul, 0x8000000003ul, 0); if (res != -1) r[0] = res; memcpy( (void*)0x20000000, "\x9f\xd3\xd3\x26\x13\x77\x2e\x64\x87\x3a\xad\x5e\xf4\xce\x33\x98\x05\x5c" "\xd3\x32\xe3\x08\x75\x76\xd3\xe7\x37\x68\xe9\x08\x2b\x4e\x0c\x7b\x28\x9c" "\x72\x20\x2d\x20\x57\x7b\x89\xc8\xb0\x60\x2b\x57\x87\x76\x83\xdc\x18\xe0" "\xf3\x3e\x65\x68\xbe\x09\x6f\x8a\x12\xf6\x86\x44\x0c\x60\xfb\xfa\xb4\xbb" "\x06\xa6\x16\xf5\x90\x72\x9c\xfb\xee\xea\x11\xd5\x0c\x71\xb7\x83\xde\x36" "\x9b\x49\x50\xe5\x0e\x29\x92\xf1\x92\xb2\xc8\x77\x32\xad\x16\xf2\x24\x76" "\x9b\xce\x22\x01\xe4\x91\xb2\x93\x9c\x64\xfb\x00\x4f\x72\x21\x81\xa7\xff" 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"\x8a\x66\x36\x15\x79\xae\xee\xef\xcc\x9f\xb0\x08\xe1\x8b\x26\xf8\xe1\xb4" "\xad\xf9\xd8\xe0\xe7\x79\xf4\x62\x80\xb8\x8e\xff\x1c\x8e\x17\x76\x15\xe9" "\x3e\x67\x1e\x4e\xf6\xf3\x9e\xa1\xfb\xfe\xbc\xff\x7a\x1c\x51\x1f\xaa\x1e" "\xdc\x22\xb0\xd0\x63\x05\xf0\xd8\xb9\xa1\x27\xcc\x8e\xaf\x02\x49\xbf\x52" "\x88\xc4\xe0\xf2\x52\x8c\x14\xa8\x4e\xd4\x41\xa6\xd6\x93\x34\xc1\x42\x78" "\x32\x31\xca\x74\x3d\x3c\x99\xb9\x91\x6c\xae\x02\xe3\xfd\x1f\x8f\x6e\x93" "\x7d\x71\xce\xbf\xae\x3b\x7d\x39\x7e\x6a\x04\x74\x6b\xb2\x7c\x56\xbb\x80" "\x15\xc4\xf0\x1c\xfa\x7a\xab\x1a\x6e\xf3\xa6\x80\x76\xe2\x31\xaf\x13\xa8" "\x55\x04\x1c\xd4\x4d\x5d\xd9\xe5\x52\x0f\x92\xfe\x46\x96\x09\x5f\xdd\xfe" "\xee\x8b\xbe\x2f\x10\x78\xa5\xfe\x59\x65\x70\x2c\x82\x0d\xb7\x06\xd6\x7f" "\x71\x95\x8d\x80\x49\xc2\xf9\x99\xed\x09\x58\xc4\xd9\xa6\x93\xae\x96\x7d" "\x26\x8d\x89\x46\xee\x70\x38\x71\x12\x84\xd5\x9e\x42\x1e\xca\xa0\x41\xdf" "\x99\xb2\x15\xb3\x16\x2b\x60\xc8\x87\xc4\x49\x4f\x93\x45\x6d\x19\x6b\x03" "\x87\x7d\xfe\xe2\x7e\xda\xeb\x39\xae\xdb\x1d\x3a\x8e\xfd\xcc\x03\xfd\x4e" "\x77\x7e\x59\x79\x69\x33\x34\x03\x45\x7f\x70\x81\x0e\x65\x95\xbf\x85\xd7" "\xf2\x87\xe5\x70\xb1\xd0\xf6\x19\xae\x13\x11\x9f\x0c\x75\x2c\x8e\xa5\xe4" "\xf1\xa5\xe8\x8f\xfb\x5f\x9c\x80\xa9\x8d\xf1\x99\x81\xa9\x58\x65\x13\x2f" "\x3a\x6b\x55\xc6\x41\xf0\x50\x11\x1a\x41\x78\x72\xdb\x88\x63\xe7\xf4\xb7" "\xac\xe7\xad\x94\x26\x6b\xd7\x96\x0d\x54\xa0\xff\xe6\xc0\x6c\xda\xf8\xad" "\xff\x89\xb9\x57\x82\x33\x25\x7c\xad\x03\x37\x4f\x91\x90\xba\x25\xca\xd5" "\x82\xbe\x40\xa6\x08\x19\x2c\x72\xee\xbe\x62\xbe\xe3\x42\x64\xfb\xdc\x90" "\x82\x2b\x48\x0a\x00\x8f\x94\xe7\x07\xe4\xdd\x92\xde\x5f\x5a\x8a\x4a\x16" "\xbd\x22\x1a\x52\xe5\x25\x0e\x5c\x4d\x8f\xe0\x87\xa1\x83\x57\x6d\x15\x96" "\xba\xd8\x91\x45\x79\x00\xdb\xbc\xdf\x97\x34\xf7\x51\x0e\xfd\xe9\xf4\xdf" "\x52\xa1\xaf\x06\xff\x4c\x06\xce\xc8\x47\x08\x6c\xfc\xf9\xc4\x8a\x9b\xe6" "\x38\x53\xc1\xca\xa8\x80\x54\xd2\xb0\xef\xdc\x1e\x1b\x87\x9d\x44\x1b\x12" "\xa4\xcf\x8e\xdc\xc9\x06\xda\x24\xb5\xb0\xcc\x4d\xf2\xca\xd0\x97\xa3\xa3" "\x94\x07\x4f\x3d\xf7\x1b\xe6\x9d\x7c\x81\x8e\xf9\x07\xfd\x28\x7e\x6a\xb1" "\xa7\x7b\x9a\x31\xa4\x59\xcd\x16\xd7\x0c\x85\x11\x7d\xfa\x18\xed\x0e\xb4" "\x85\xba\x17\x02\x13\x35\xa5\xeb\xa7\x15\xcf\xe8\x46\xc0\x22\xb2\x5f\xb5" "\x9b\xd8\x6f\x06\xbf\x08\xbf\x54\x76\x83\x97\x94\x35\x18\x37\x5a\x61\x63" "\xd1\x40\xe2\x6d\x2c\x4a\xa4\x36\x66\xb4\xbc\x9c\x40\x95\x38\xf2\x1f\x6d" "\x1b\xdb\xef\xac\x6d\x2b\x05\xd1\x38\xaf\x6b\xa4\x93\x14\x0d\xf5\xcd\xf5" "\x35\x28\x53\xac\xec\x99\x1b\xed\x0b\x38\xa5\x03\xcb\x2a\x66\x1d\xd6\xe6" "\x88\xe7\x9d\xcc\x29\x69\x5f\x63\xbf\x4c\x74\x8e\xb8\xe4\x48\x69\x70\xa1" "\x9e\xbe\x37\x03\x76\xce\xa6\x25\xa7\x43\xe9\x03\xa8\xa1\x25\x02\x90\x5a" "\xee\x7b\x31\x7d\x29\x05\x09\x7b\xab\xe5\x06\xb2\x03\xb9\xb5\x8f\x30\xbe" "\x8f\x3a\xef\x76\xc4\x42\x1f\x74\xd4\x10\xa6\x0c\xe1\x69\x4b\x81\x75\xa9" "\xf9\x29\x3e\x09\xad\xd2\xeb\x50\x94\x10\x7e\x21\x0f\x66\x28\x1b\x83\x3a" "\x26\x8d\x99\xe4\x0e\x5d\x08\xe2\x4a\x26\x5d\x37\xda\x86\xde\xca\xb9\x73" "\xc5\x19\x20\xb6\xbe\xc6\x3e\x14\x32\xd1\x29\x6b\x6f\xf2\xe2\x0c\xa3\x97" "\xbf\xc7\x2d\x12\xc2\x34\x5c\x3f\xe8\x0c\xd3\xc8\x59\x22\x52\x0f\x9f\x1d" "\xf4\x7c\x89\xe6\x16\xe2\x3c\x3d\xb1\xef\xfc\x5a\x80\x7c\x85\xc5\x2c\x38" "\xf6\x0f\xb0\x01\xe0\x0a\x5d\x27\x66\x84\x1c\xae\x8b\xf6\xa7\x0a\x7b\x61" "\xaf\x08\x4d\x72\xc4\x70\xc6\xed\xdb\x38\x99\x3e\x92\xf6\x76\xcf\x07\x10" "\x22\x98\x27\xad\x5c\x45\xa5\x01\x27\x8a\xf5\xb7\x63\x31\x47\x4b\xcc\x4d" "\x85\xc1\x2c\x58\x05\x2c\xbd\xbf\x8f\x11\x50\xd2\xb7\x43\x1a\x3e\x77\xb7" "\xcd\x0b\xa6\xc9\xb7\x0d\xe6\xfc\x28\xd2\xd5\x35\xfd\xe2\x22\xec\x8e\x77" "\x28\x01\xf8\x7a\xa7\xc3\x2d\xfb\xfe\xb1\xac\x91\x0f\x98\x8b\xb0\x9a\x17" "\xed\xcc\xff\x37\xfb\xaf\x6b\x35\xdf\x8c\xf2\x65\x30\x66\x33\xa0\x74\x44" "\xc9\x0c\x21\x48\x4c\x29\x9c\xf8\x78\xfe\x8b\xbb\x73\x24\x6e\xfe\x68\x66" "\xf2\xe0\x6c\x09\xbc\xaa\xef\x04\x8d\x6d\x63\x9f\x9c\xb3\x99\xb0\x4e\xdb" "\xfa\x08\x55\x9c\x8e\x8f\x76\xab\x02\x8b\x4e\xcd\xbe\xa5\x96\x9a\xc0\xcd" "\xb5\x9a\x25\xa7\x2d\x75\x59\x3e\x62\xa6\x75\x5e\xe5\x01\xe0\x4f\x0d\x31" "\x35\xaf\xad\x14\x4c\xfb\xa2\xf1\x9f\x6d\xde\x26\xb6\xe0\x63\x23\x90\xde" "\x59\x4d\x5b\xcd\xfd\xfd\x49\x9c\x26\x99\x9e\x7d\xe7\xe6\x8e\x8a\x44\xc7" "\x31\xb1\xf4\x0d\x56\x0d\x9a\x64\xb8\xb4\xad\xfd\xa2\x8e\xa0\xea\x67\xcc" "\x10\x7b\xd9\xd3\x13\xbd\xdd\x68\xf1\x39\x26\xa5\xcf\x4f\xfb\x2f\x82\x84" "\x12\x33\x07\xbf\x57\xb9\x6e\xdc\x03\x22\xb2\x02\x6b\x54\x01\x4d\xc1\x50" "\x8a\xd0\x34\x5f\xf7\x2a\x91\xe0\xf7\x63\x32\xf6\x4b\x3d\x0d\x21\xd2\x3f" "\xd5\xe2\x35\xd7\x49\xf4\xfb\x4f\x10\x75\x98\xca\x2d\x89\xbf\xb3\x6f\x3e" "\x66\xb3\xea\x02\x43\xba\x52\x0c\x29\xe5\x3e\xfa\xc3\xf8\x4d\x51\x74\xbf" "\x98\x45\xcd\xa4\x17\x2c\xdb\x34\x07\xff\xe9\x37\x87\x5a\xf0\x15\xe4\x36" "\x22\x33\x62\xd0\x17\xc8\x63\xee\x84\x50\xad\x5e\x66\x47\x69\x7f\x9f\x4a" "\xb8\x5a\x6c\x64\x50\x97\xcb\x31\xc7\xa2\x8f\x40\xef\xc3\xa6\x13\xd4\x60" "\xea\x18\x7b\x30\xc0\xde\xe5\x8c\xbe\xd5\xea\x97\x6c\xa6\x97\x63\xd0\xdc" "\x29\x6d\x38\x2b\x90\xd7\xad\x50\xbe\xfd\xfa\x5b\x63\x98\xc8\xef\x5f\x86" "\x49\x69\xc9\x06\x40\xfb\xa0\x59\xb9\xdd\xc8\xd9\x71\xd7\xb4\x5c\x71\xbf" "\x04\x20\x31\x75\xe7\x9a\x35\xe5\x5a\xa2\xa8\xd2\x47\x14\x1d\x1d\x04\x57" "\x1e\xb4\x56\xdd\xf3\x97\x18\xf5\x9d\xc8\xf3\x30\xc8\xcd\xa1\xe8\x5e\x8c" "\x28\x9a\x5a\x05\x33\x61\x7f\x01\xb7\xff\x2c\x57\x57\x2e\xb7\xd6\x5d\x52" "\xcc\x64\x3c\x05\xc2\x9b\x1a\x37\x76\xe5\xe6\x2d\x5d\xa6\x27\xe1\x98\x4d" "\xbd\x53\x1d\xa4\x8b\x58\xf5\x23\x23\x06\x83\x74\x74\x4c\x33\x68\x33\x09" "\x8c\x8b\x66\x5c\x59\x65\xf7\x32\x3f\x4c\xa7\xbc\x96\x77\x1c\x8c\x0b\xbf" "\x13\xff\x64\xbd\xa1\x5d\xcb\x67\x1c\x74\xec\x9b\xfb\xf1\xbd\x78\x50\xd0" "\x56\x2f\x7f\xbd\xee\x08\xa0\xa2\x16\x4e\x5e\xaf\x93\x8d\x46\xb6\x6f\xd5" "\x96\xab\x7b\x18\xa3\xe7\x5c\xc3\x36\xd7\xd1\x56\x1e\x35\x09\x73\xfa\x2e" "\x5c\xd2\xe6\xff\xc9\xea\x52\xa2\x22\x83", 4096); syscall(SYS_write, r[0], 0x20000000ul, 0x1000ul); } 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; }