// https://syzkaller.appspot.com/bug?id=e9f526f59d5b25decd3b91d4270b5da2aa23c8f6 // 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(long a0, long a1, 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[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); long res = 0; memcpy((void*)0x20000200, "/dev/video#", 12); res = syz_open_dev(0x20000200, 0x7fffffff, 0x129482); if (res != -1) r[0] = res; *(uint32_t*)0x20000240 = 0; *(uint32_t*)0x20000244 = 7; *(uint32_t*)0x20000248 = 2; *(uint32_t*)0x20000250 = 1; *(uint16_t*)0x20000258 = 0; *(uint16_t*)0x2000025a = 0; *(uint16_t*)0x2000025c = 0; *(uint16_t*)0x2000025e = 0; *(uint16_t*)0x20000260 = 0; *(uint16_t*)0x20000262 = 0; *(uint16_t*)0x20000264 = 0; *(uint16_t*)0x20000266 = 0; *(uint16_t*)0x20000268 = 0; *(uint16_t*)0x2000026a = 0; *(uint16_t*)0x2000026c = 0; *(uint16_t*)0x2000026e = 0x1000; *(uint16_t*)0x20000270 = 0; *(uint16_t*)0x20000272 = 0; *(uint16_t*)0x20000274 = 0; *(uint16_t*)0x20000276 = 0; *(uint16_t*)0x20000278 = 0; *(uint16_t*)0x2000027a = 0; *(uint16_t*)0x2000027c = 0; *(uint16_t*)0x2000027e = 0; *(uint16_t*)0x20000280 = 0; *(uint16_t*)0x20000282 = 0; *(uint16_t*)0x20000284 = 0; *(uint16_t*)0x20000286 = 0; *(uint16_t*)0x20000288 = 0; *(uint16_t*)0x2000028a = 0; *(uint16_t*)0x2000028c = 0; *(uint16_t*)0x2000028e = 0; *(uint16_t*)0x20000290 = 0; *(uint16_t*)0x20000292 = 0; *(uint16_t*)0x20000294 = 0; *(uint16_t*)0x20000296 = 0; *(uint16_t*)0x20000298 = 0; *(uint16_t*)0x2000029a = 0; *(uint16_t*)0x2000029c = 0; *(uint16_t*)0x2000029e = 0; *(uint16_t*)0x200002a0 = 0; *(uint16_t*)0x200002a2 = 0; *(uint16_t*)0x200002a4 = 0; *(uint16_t*)0x200002a6 = 0; *(uint16_t*)0x200002a8 = 0; *(uint16_t*)0x200002aa = 0; *(uint16_t*)0x200002ac = 0; *(uint16_t*)0x200002ae = 0; *(uint16_t*)0x200002b0 = 0; *(uint16_t*)0x200002b2 = 0; *(uint16_t*)0x200002b4 = 0; *(uint16_t*)0x200002b6 = 0; *(uint16_t*)0x200002b8 = 0; *(uint32_t*)0x200002bc = 0; *(uint32_t*)0x200002c0 = 0; *(uint32_t*)0x200002c4 = 0; *(uint32_t*)0x20000320 = 0; *(uint32_t*)0x20000324 = 0; *(uint32_t*)0x20000328 = 0; *(uint32_t*)0x2000032c = 0; *(uint32_t*)0x20000330 = 0; *(uint32_t*)0x20000334 = 0; *(uint32_t*)0x20000338 = 0; *(uint32_t*)0x2000033c = 0; syscall(__NR_ioctl, r[0], 0xc100565c, 0x20000240); *(uint32_t*)0x200000c0 = 0; *(uint32_t*)0x200000c4 = 0xce6b; *(uint32_t*)0x200000c8 = 1; *(uint32_t*)0x200000d0 = 1; *(uint32_t*)0x200000d8 = 0; *(uint32_t*)0x200000dc = 0; *(uint32_t*)0x200000e0 = 0; *(uint32_t*)0x200000e4 = 0; *(uint32_t*)0x200000e8 = 0; *(uint32_t*)0x200000ec = 0x15182c; *(uint32_t*)0x200000f0 = 0; *(uint32_t*)0x200000f4 = 0; *(uint32_t*)0x200000f8 = 0; *(uint32_t*)0x200000fc = 0; *(uint32_t*)0x20000100 = 0; *(uint32_t*)0x20000104 = 0; *(uint32_t*)0x200001a0 = 0; *(uint32_t*)0x200001a4 = 0; *(uint32_t*)0x200001a8 = 0; *(uint32_t*)0x200001ac = 0; *(uint32_t*)0x200001b0 = 0; *(uint32_t*)0x200001b4 = 0; *(uint32_t*)0x200001b8 = 0; *(uint32_t*)0x200001bc = 0; syscall(__NR_ioctl, r[0], 0xc100565c, 0x200000c0); return 0; }