// https://syzkaller.appspot.com/bug?id=7f89ee40d35beb6d8f3fc3d122e43287cc3825cd // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void loop() { long res = 0; memcpy((void*)0x200005c0, "./file0", 8); syscall(__NR_mkdir, 0x200005c0, 0xfffffffffffffffc); res = syscall(__NR_pipe2, 0x20000240, 0); if (res != -1) { r[0] = *(uint32_t*)0x20000240; r[1] = *(uint32_t*)0x20000244; } memcpy((void*)0x20000280, "./file0", 8); memcpy((void*)0x200002c0, "9p", 3); memcpy((void*)0x20000340, "trans=fd,", 9); memcpy((void*)0x20000349, "rfdno", 5); *(uint8_t*)0x2000034e = 0x3d; sprintf((char*)0x2000034f, "0x%016llx", (long long)r[0]); *(uint8_t*)0x20000361 = 0x2c; memcpy((void*)0x20000362, "wfdno", 5); *(uint8_t*)0x20000367 = 0x3d; sprintf((char*)0x20000368, "0x%016llx", (long long)r[1]); *(uint8_t*)0x2000037a = 0x2c; memcpy((void*)0x2000037b, "fscache", 7); *(uint8_t*)0x20000382 = 0x2c; memcpy((void*)0x20000383, "version=9p2000.L", 16); *(uint8_t*)0x20000393 = 0x2c; memcpy((void*)0x20000394, "cache=mmap", 10); *(uint8_t*)0x2000039e = 0x2c; memcpy((void*)0x2000039f, "access=user", 11); *(uint8_t*)0x200003aa = 0x2c; memcpy((void*)0x200003ab, "loose", 5); *(uint8_t*)0x200003b0 = 0x2c; memcpy((void*)0x200003b1, "cachetag", 8); *(uint8_t*)0x200003b9 = 0x3d; memcpy((void*)0x200003ba, "nodevmap", 8); *(uint8_t*)0x200003c2 = 0x2c; memcpy((void*)0x200003c3, "posixacl", 8); *(uint8_t*)0x200003cb = 0x2c; memcpy((void*)0x200003cc, "afid", 4); *(uint8_t*)0x200003d0 = 0x3d; sprintf((char*)0x200003d1, "0x%016llx", (long long)0x7ff); *(uint8_t*)0x200003e3 = 0x2c; memcpy((void*)0x200003e4, "cachetag", 8); *(uint8_t*)0x200003ec = 0x3d; memcpy((void*)0x200003ed, "\x40\x28\x77\x6c\x61\x6e\x30\x27\x6c\x6f\x73\x65" "\x6c\x66\x70\x6f\x73\x69\x78\x5f\x61\x63\x6c\x5f" "\x61\x63\x63\x65\x73\x73\xad\x70\x6f\x73\x69\x78" "\x5f\x61\x63\x6c\x5f\x61\x63\x63\x65\x73\x73\x77" "\x6c\x61\x6e\x31\x2d\x2f\x2d", 55); *(uint8_t*)0x20000424 = 0x2c; *(uint8_t*)0x20000425 = 0; syscall(__NR_mount, 0, 0x20000280, 0x200002c0, 0x800000, 0x20000340); } int main() { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); loop(); return 0; }