// https://syzkaller.appspot.com/bug?id=6ebdcf8b382e79788943bc3292640283d68fba29 // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf)); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } static void test(); void loop() { while (1) { test(); } } long r[19]; void test() { memset(r, -1, sizeof(r)); r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul, 0xfffffffffffffffful, 0x0ul); memcpy((void*)0x20b8aff3, "\x2f\x64\x65\x76\x2f\x6e\x65\x74\x2f\x74\x75\x6e\x00", 13); r[2] = syz_open_dev(0x20b8aff3ul, 0x0ul, 0x40ul); memcpy((void*)0x201e8fd8, "\x56\xa0\xcf\xc2\xed\x67\x5d\xe2\xcc\xc3" "\x04\xc8\x78\xbd\x54\x81", 16); *(uint16_t*)0x201e8fe8 = (uint16_t)0x1a; *(uint16_t*)0x201e8fea = (uint16_t)0xf600; *(uint8_t*)0x201e8fec = (uint8_t)0x1000c60; *(uint8_t*)0x201e8fed = (uint8_t)0xfffffffffffffffc; *(uint8_t*)0x201e8fee = (uint8_t)0xb; *(uint8_t*)0x201e8fef = (uint8_t)0x4820; *(uint8_t*)0x201e8ff0 = (uint8_t)0xaa; *(uint8_t*)0x201e8ff1 = (uint8_t)0xaa; *(uint8_t*)0x201e8ff2 = (uint8_t)0xaa; *(uint8_t*)0x201e8ff3 = (uint8_t)0xaa; *(uint8_t*)0x201e8ff4 = (uint8_t)0xaa; *(uint8_t*)0x201e8ff5 = (uint8_t)0x0; *(uint8_t*)0x201e8ff6 = (uint8_t)0x0; *(uint8_t*)0x201e8ff7 = (uint8_t)0x0; r[18] = syscall(__NR_ioctl, r[2], 0x400454caul, 0x201e8fd8ul); } int main() { loop(); return 0; }