// https://syzkaller.appspot.com/bug?id=53599a7fc4882bf655e43ac53edfe43e7740baab // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); intptr_t res = 0; memcpy((void*)0x20000080, "/dev/nullb0\000", 12); res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul, 0x4000000004002ul, 0ul); if (res != -1) r[0] = res; syscall(__NR_mmap, 0x20000000ul, 0xe7e000ul, 0x200000eul, 0x13ul, r[0], 0ul); *(uint64_t*)0x20000000 = 0xcb; syscall(__NR_ioctl, r[0], 0x125d, 0x20000000ul); return 0; }