// https://syzkaller.appspot.com/bug?id=5a30a0945259f4e6431592894e78d927f1fbf813 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include static long syz_open_dev(volatile long a0, volatile long a1, volatile long 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) - 1); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } uint64_t r[2] = {0xffffffffffffffff, 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; res = syscall(__NR_inotify_init1, 0ul); if (res != -1) r[0] = res; syscall(__NR_fcntl, r[0], 0x10ul, 0ul); memcpy((void*)0x20000080, "/dev/input/event#\000", 18); res = -1; res = syz_open_dev(0x20000080, 0xc, 0x121041); if (res != -1) r[1] = res; syscall(__NR_fcntl, r[1], 4ul, 0x62000ul); *(uint16_t*)0x200000c0 = 0; *(uint16_t*)0x200000c2 = 0; *(uint16_t*)0x200000c4 = 0; *(uint16_t*)0x200000c6 = 0; *(uint16_t*)0x200000c8 = 1; *(uint16_t*)0x200000ca = 0x52; *(uint16_t*)0x200000cc = 2; *(uint16_t*)0x200000d0 = 0; *(uint16_t*)0x200000d2 = 0; syscall(__NR_ioctl, -1, 0x40304580, 0x200000c0ul); syscall(__NR_write, r[1], 0x20000040ul, 0x373ul); return 0; }