// https://syzkaller.appspot.com/bug?id=90ee9f6738daa68f079c010624c70fca59b2f2cd // 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 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, 0x1cul, 5ul, 0x84); if (res != -1) r[0] = res; *(uint32_t*)0x20000300 = 0x200; syscall(SYS_setsockopt, r[0], 0xffff, 0x1001, 0x20000300ul, 4ul); *(uint32_t*)0x20000000 = 0x804; syscall(SYS_setsockopt, r[0], 0x84, 0x1b, 0x20000000ul, 4ul); *(uint64_t*)0x20000480 = 0x20000080; *(uint8_t*)0x20000080 = 0x1c; *(uint8_t*)0x20000081 = 0x1c; *(uint16_t*)0x20000082 = htobe16(0x4e23); *(uint32_t*)0x20000084 = 0; *(uint64_t*)0x20000088 = htobe64(0); *(uint64_t*)0x20000090 = htobe64(1); *(uint32_t*)0x20000098 = 0; *(uint32_t*)0x20000488 = 0x1c; *(uint64_t*)0x20000490 = 0x200000c0; *(uint64_t*)0x200000c0 = 0x20000200; memset((void*)0x20000200, 115, 1); *(uint64_t*)0x200000c8 = 1; *(uint64_t*)0x200000d0 = 0; *(uint64_t*)0x200000d8 = 0; *(uint32_t*)0x20000498 = 2; *(uint64_t*)0x200004a0 = 0; *(uint32_t*)0x200004a8 = 0; *(uint32_t*)0x200004ac = 0; syscall(SYS_sendmsg, r[0], 0x20000480ul, 0ul); *(uint64_t*)0x20000280 = 0x20000100; *(uint8_t*)0x20000100 = 0x1c; *(uint8_t*)0x20000101 = 0x1c; *(uint16_t*)0x20000102 = htobe16(0x4e23); *(uint32_t*)0x20000104 = 0; *(uint64_t*)0x20000108 = htobe64(0); *(uint64_t*)0x20000110 = htobe64(1); *(uint32_t*)0x20000118 = 0; *(uint32_t*)0x20000288 = 0x1c; *(uint64_t*)0x20000290 = 0x20000240; *(uint64_t*)0x20000240 = 0x20000140; memset((void*)0x20000140, 51, 1); *(uint64_t*)0x20000248 = 1; *(uint32_t*)0x20000298 = 1; *(uint64_t*)0x200002a0 = 0; *(uint32_t*)0x200002a8 = 0; *(uint32_t*)0x200002ac = 0; syscall(SYS_sendmsg, r[0], 0x20000280ul, 0ul); } int main(void) { syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul); loop(); return 0; }