// https://syzkaller.appspot.com/bug?id=b9760421ef95b6285c1314484523eb5e5913ac5f // 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 #ifndef SYS_mmap #define SYS_mmap 197 #endif #ifndef SYS_sendto #define SYS_sendto 133 #endif #ifndef SYS_socket #define SYS_socket 394 #endif 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 = 0; for (;; 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 < 5000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; res = syscall(SYS_socket, 0x11ul, 3ul, 0); if (res != -1) r[0] = res; memcpy( (void*)0x20000900, "\x02\x2a\x7b\xf5\x16\xe2\x61\xa5\x58\x83\xec\xd6\x00\xd1\x61\x79\x86\x42" "\xde\xa1\x51\x46\xcf\xab\x1a\x95\xd7\x11\xbf\xc1\xa3\xd6\xe6\x0f\x81\xd4" "\x5c\xf4\x1c\xf7\x79\xdb\x4d\xb9\x68\x21\x82\x7d\x28\x05\x99\xc1\xef\xba" "\x10\x34\x6f\x6b\xe9\x56\x3d\x9b\x7f\x24\xcd\x29\x76\x3c\x7b\x1a\x94\x2f" "\xed\xe5\xd6\x57\x23\xed\x92\x7b\xd8\xdd\x3b\x90\x17\x71\x40\xca\xaa\x92" "\x5b\x8d\xd7\xbc\xc8\xa0\x86\x43\x2e\xfd\xd6\x52\x89\x4f\x7d\xe1\x80\xb4" "\x6a\x57\x36\xbc\x2d\xb6\x63\xcc\x5e\xf5\x5d\x6b\x63\x1e\x9b\xcb\xda\x5b" 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"\xed\x44\x1e\xa9\x5d\xe5\xc3\x56\x63\x29\x2b\x53\x7c\xe0\xbd\x30\x02\x40" "\xef\x61\xd4\xd9\x1a\x90\xf3\x07\x84\x9f\x9c\x70\xa2\x72\x6b\x12\x6e\xbb" "\xbc\x4a\x48\x01\x63\xfa\x33\x0f\x5e\xa6\xea\x42\x0b\x7f\xfe\xeb\x5c\x6a" "\x96\x81\x0c\x0f\x77\x38\xc9\xaf\xd2\x1c\x38\xc5\x89\xb6\xdc\x0b\xb3\x85" "\x4c\x22\x6d\x6f\xbe\x46\x0b\x61\x5e\x93\x72\xd2\x8e\xd8\xde\xb6\x9a\x1d" "\xdc\xa2\x5b\xad\x7d\x28\xdf\x69\x61\xe4\x6e\xaf\xa1\x9b\xca\x0e\x6e\x5a" "\xe2\x27\x85\x40\xc2\x07\x7e\xa5\xc4\x69\x3b\x23\x65\x8a\xf8\xde\xf0\x83" "\x26\x5c\x8f\xac\xd2\x5b\xba\xae\x13\x2f\x4d\xfe\xa2\xa8\xad\x94\xde\x52" "\xb5\x2a\x43\xc4\x01\xbf\xcf\x36\x42\xa4\xd1\xea\x01\xac\x96\xd7\xdb\xec" "\xc2\x2d\x36\xbf\xc6\x45\x99\x7b\xed\x02\x76\xc0\x11\xa0\x54\x70\x72\x7e" "\x01\x59\xa9\x86\x9d\xd9\x9f\xf9\x95\x75\x79\x6c\x87\xe3\xd9\x60\xee\x86" "\x8d\x22\x1c\xb0\x29\x6c\x74\x84\xb2\x75\xc2\x6c\xdf\xd3\x40\xc2\xce\xc0" "\x59\xf9\x5d\x65\xfe\x5c\x66\x03\xb0\xb3\x5e\xef\xb0\x5c\x81\x29\xa2\xb8" "\x6d\x41\x5d\xd9\x34\x28\xe3\x72\xab\xc4\xe3\xcd\xbe\xf8\x7c\x04\x8f\x25" "\x9c\x67\xd0\x6f\x75\x50\x36\x52\x01\x1e\x8c\x5b\x3e\x66\xed\x3a\x07\x73" "\x43\x3f\x70\xc5\x75\x62\x02\xc3\x0e\x3f\x18\x50\x2d\x27\xb0\x42\x06\x13" "\xe7\x69\x00\xca\xda\xe6\x29\xdd\x81\x6f\xd1\xd2\xc0\x0c\x00\x08\xaf\x17" "\xa5\x95\x2f\x3b\x45\xfd\x3a\x7a\x17\x86\x19\xbd\x8a\xfd\xa5\x67\x0b\xbb" "\x13\x89\x7a\xda\x65\x38\x31\xd8\x72\xa8\xf2\x8a\x97\xf5\xc5\xa3\x13\x0a" "\x3f\x84\x46\x87\xcc\x48\x1b\x13\x23\x9d\x26\x8f\xdd\x8a\x69\xf1\xe3\x14" "\x91\x02\x2c\xb4\xe2\xc8\x2c\xf3\xf5\xcf\x1b\x04\xcd\xc8\x40\xa2\x0d\xdf" "\x2a\x0c\x92\xc0\xed\xb9\x6e\x6e\x05\x3d\x08\x46\x97\x3a\xc4\xc8\x1d\xeb" "\xb3\x8a\x1e\x6a\xd6\xe8\xbf\x41\x73\xae\xb2\xc9\xa2\x65\x6b\xbb\xa3\x28" "\x1c\x26\x03\xa8\x7a\xc2\x28\x64\x50\xcf\xd9\x3e\x54\x06\x10\x00\x58\x4a" "\xf7\xc0\x26\x76\x1d\x44\x12\xbc\xf5\xcf\x7f\x3c\xfd\xe9\x35\x19\xcf\x09" "\xdf\xcb\x1a\x46\x13\x6d\xce\x4c\x19\x73\x35\x4d\x6d\x6e\x14\x12\x05\x20" "\xda\x6e\xf6\x3a\x63\x7d\x10\xff\x69\x18\x4c\x78\x7c\x16\x85\xc2\xe9\x28" "\x7f\x84\xdb\xed\x1b\xb4\x6f\x77\xca\x30\x43\x5f\xf4\x7c\x0e\x2b\x3f\x91" "\x97\x91\x36\x11\x58\x66\x16\x08\xe6\x32\x5a\xcd\x0e\xfe\xb7\x1f\x4d\xe1" "\x4b\xaf\x29\x31\x18\x2c\x0e\x4e\xee\x67\x24\x00\x83\x4d\x7b\x7e\x82\x37" "\xbc\x0d\x76\xdc\x4c\x68\x4a\x30\x12\x1d\xc7\x8e\x8b\xb5\x22\x1e\x76\x98" "\x93\xf7\xd8\x60\xe4\xfc\xd3\x94\x34\xe3\xdb\x7a\xbf\xec\x47\x39\x4f\x9c" "\x2e\xf2\xdd\x1b\xcc\x55\x3a\xa8\x2f\x26\xb8\x93\x09\x5e\x3b\x5f\x76\xaa" "\x82\x4e\x0d\x78\xc1\x54\x00\x08\xce\x27\x84\x6b\x9d\xdf\xcf\xb5\x9f\x23" "\x89\xd6\x60\xa3\xae\x71\xda\x49\x28\xd9\x44\x25\xde\x15\xf1\xb1\x63\x84" "\x82\xd6\x1b\x15\xa1\xc8\x24\x85\x3a\x98\x05\x63\x8b\xd8\x4e\x16\xca\xa3" "\x9d\x40\xef\x89\xb3\x7d\x03\xf8\x39\x6c\x5a\x61\xa7\x9f\xc7\xa4\x4a\x3b" "\x01\xe6\x9b\x86\xa6\x57\x2f\x5f\x9f\x9b\x4c\x26\x34\xff\xec\x10\xd4\x29" "\x02\xaf\x8a\x7b\xba\x75\x7a\x09\x9a\x07\x1b\xea\xed\xb6\xe1\xaf\xb3\x8d" "\x28\x37\xb3\x58\xa5\x94\x26\xbf\xdf\xdd\xcb\x64\x2a\x61\x64\x82\x29\xf7" "\x21\x4e\xae\xa3\x35\x56\x6a\x78\xf7\xc7\x2a\x09\xf6\x5c\xaa\xfd\x1b\xe6" "\x6d\xc0\xcf\xee\x9d\x43\x38\x05\x26\xbd\x93\x48\x6a\x01\xa3\xbf\xdb\x87" "\x82\xb9\x5f\xc1\x29\xad\xd7\x1d\x60\x06\x4f\xa5\x1c\x06\x8d\x2a\x3b\xd4" "\x70\xd8\x0c\x84\x94\xad\xd2\x69\x06\x6b\x79\x58\xb0\x5b\x26\xb8\x84\x54" "\xf8\xec\xda\xe1\x24\xa2\x9d\xa0\x0f\xe7\xaf\xdc\xed\xb1\x23\xa0\xfe\xa4" "\xea\xf6\xbb\x6f\x82\x39\x49\x2c\x3c\x8a\xf2\xe0\xde\x21\x87\xe9\x1a\x21" "\x7a\xdd\x9b\x44\xab\x37\x4f\x95\x59\x54\xbd\xd7\x9c\x48\xbb\x1c\xc6\x7b" "\x62\x32\x0e\xd9\xb7\xc1\xe9\x8a\x4e\xb6\xad\xbf\x4b\x54\xfb\xda\xcd\xb1" "\xb0\xac\xfd\x83\x6d\x9a\xd3\x00\xba\xed\x43\xd6\x9b\xc8\xaa\x0e\xa4\x44" "\x18\xa2\xe6\x97\x16\x78\xf3\xdb\x98\x8a\x8b\x2f\xec\x2b\x8f\xde\xe0\xcb" "\x97\x8d\x61\x04\x46\xec\xe7\x61\xd5\x25\x8d\xe9\xaf\xaa\xf9\xba\x13\x94" "\x13\x04\x1d\xb5\xc7\x08\x47\x3d\x7a\xa8\x60\x44\x28\x6d\xea\x22\x79\x2d" "\xdd\x7b\x14\x73\x8e\x8d\x11\x3e\x4d\xf4\x03\xb2\xa6\x8c\xab\x7a\x86\xb8" "\x58\xf0\x3d\x25\x4c\xb0\x0a\x97\x00\xe4\xfb\x7d\x1b\xac\xec\x19\x6b\xc3" "\x77\xe0\x80\x1e\x07\xcf\x5d\x73\x5d\x66\x62\xec\xbc\xf6\x70\xbc\x22\x51" "\x3c\x98\x66\x26\x8b\xb6\xe9\xcd\x90\x2e\x41\x14\xb3\xde\x94\x15\xc6\x80" "\xe6\xda\x28\xe1\x6e\x81\xb8\x40\xa9\xa3\xc1\xc9\xe6\xb0\x6e\x6e\xa9\x1d" "\x81\x03\xeb\xd2\x89\x38\x00\x7d\xb3\xe7\x1d\xb8\x50\x46\x66\x42\x7c\xaa" "\x6e\x4e\x91\x66\xa8\x8c\xc1\x92\x96\x07\x83\xd5\x74\x58\x24\xcb\xa2\x3a" "\x25\x53\xa0\x11\x60\x10\x2f\x92\x11\xb2\xb3\x14\x08\x89\x4b\xe4\xec\x86" "\x1d\x0e\xa4\x53\x0f\x07\xe7\xff\x50\xcf\xef\x25\xb2\x72\x65\xb9\x0e\xa3" "\x9d\x8a\x98\x45\x0d\xdf\xa4\x9f\xb3\x5d\xc0\x98\xe6\x54\x69\xd3\x5a\x14" "\x82\xdd\x84\x48\x64\x69\xa7\xc5\xbf\xa0\xa9\x9b\x97\xf9\x6f\x75\x86\x14" "\x06\xdb\xff\x9e\x14\x21\x84\xf0\xe8\x4e\x7e\x3c\x24\x00\xe3\x11\xa5\xf7" "\x77\xef\x74\x2a\xbf\xae\x26\xa2\x2e\x15\xfa\x0f\x23\x1f\x27\xc5\x8b\x74" "\xdb\xb3\x5f\xcc\x71\x3c\x7e\x05\xd9\x2f\x9b\x24\xc1\xbb\xdc\x8d\xc6\xc5" "\x10\x4d\x3c\x43\x2b\xd6\x49\xd0\x66\x82\x9c\xf0\x53\xe2\x93\x35\xe5\xac" "\x76\x79\x35\xab\xa3\x98\xde\x2c\x6d\xe0\xf4\xec\x17\x8c\x89\x06\x2f\x5a" "\xec\x60\x02\x81\xca\x82\x4b\x2a\xc6\xfb\x48\x63\x68\x7d\x54\x37\xc1\x8e" "\xe2\x8f\x49\xb2\x79\x86\x82\x92\xa8\xac\x89\x28\x09\xff\x2d\xac\x7f\x23" "\x39\x26\x4a\x75\x05\xc0\x88\x33\x56\xb1\x71\xda\x6a\x43\xfb\x4e\x65\x3b" "\x6c\xf5\xe0\x85\x76\x75\x08\xa2\x80\xa4\x50\x7e\xcd\xc3\x78\x70\x2b\x28" "\xe4\x23\x27\x1c\x0a\x06\xbd\x76\xef\xe1\x2d\x67\x75\x46\xf0\x04\x9f\x0c" "\xd7\xa2\x6a\x4e\x2b\x5c\xca\xd2\xee\x25\x15\xc0\xff\xa4\x23\x23\xfc\x5a" "\x22\x0c\xb3\x1c\x1b\xcb\x1b\x56\x6c\xd9\x90\x2c\x98\x21\xd5\xd7\x78\xe8" "\x28\x24\x8c\x43\xcc\x38\x9c\x7a\x08\x8b\xbf\x2b\x56\x71\xdf\x12\x33\x8f" "\x67\xe6\xc0\xfe\x91\xe7\xeb\x29\xe5\x31\xca\xef\x32\x31\x71\xf3\xd9\xfe" "\x80\x2c\x7e\x89\x48\xfe\xa1\x15\xc5\xce\x7d\x44\xf5\xa2\x88\x72\xda\x93" "\x18\x24\xb4\x15\xc3\xaf\x7b\x01\xd3\xa7\x91\xe6\xf3\x69\x33\xe0\x6f\x65" "\x4b\xef\x23\xb3\x79\x67\x0b\x9e\xd0\xae\x8b\x49\x36\x74\xec\xbe\x63\xd2" "\xfc\xdb\x09\x34\x08\x1d\xa4\x0d\x85\x3a\x22\xa0\xaa\xfe\x56\xd0\x95\x93" "\x4f\xaf\x50\x5e\x04\xe9\x03\x77\x2b\x44\xaa\x33\x33\x4c\x9d\x50\x66\x00" "\xcf\xb9\xac\x30\x67\x79\x81\x3e\x61\x89\x3a\x12\x25\x0c\x8e\xfe\x24\xa0" "\x7f\x22\x35\x85\xeb\x8d\xb0\xb6\xad\xda\x09\xa6\xc7\xe0\xf0\xca\x81\x9a" "\x23\xa9\xf0\xb7\xb5\xd7\x9b\x28\x30\x7b\x4d\xbb\x40\x9d\x2d\x27\xb5\xf4" "\xb4\xc6\x61\xb4\xce\xaa\xb9\x2d\x2e\x72\x55\xcf\xde\x4e\x56\x7e\xb6\x89" "\xdc\x77\x79\xba\xe9\xe3\x38\x1c\x01\xb4\x1d\x06\x5d\xa8\x6e\x0b\xe9\xc5" "\x21\x36\xc0\xe4\x08\x22\x99\x25\xb3\xaa\x8f\x5a\xa5\xa5\x48\xf6\x64\xf7" "\xd4\xfc\x7f\x35\x08\xcc\x3a\xe8\x52\x3b\x8f\x10\x77\x51\x59\x65\xca\xaf" "\xda\xe6\x27\xb2\x3b\xf5\x31\xce\xaa\xaf\x6b\x32", 4080); syscall(SYS_sendto, r[0], 0x20000900ul, 0xff0ul, 0ul, 0ul, 0ul); } 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; }