| // BUG: unable to handle kernel paging request in csi_J |
| // https://syzkaller.appspot.com/bug?id=5b4d23985d04ddd906aa3f450821b8e75bcf69f2 |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <endian.h> |
| #include <fcntl.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| 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, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0); |
| intptr_t res = 0; |
| memcpy((void*)0x20000180, "/dev/fb0\000", 9); |
| res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000180ul, 0ul, 0ul); |
| if (res != -1) |
| r[0] = res; |
| *(uint32_t*)0x20000000 = 0; |
| *(uint32_t*)0x20000004 = 0; |
| *(uint32_t*)0x20000008 = 0; |
| *(uint32_t*)0x2000000c = 0; |
| *(uint32_t*)0x20000010 = 0; |
| *(uint32_t*)0x20000014 = 0; |
| *(uint32_t*)0x20000018 = 8; |
| *(uint32_t*)0x2000001c = 0; |
| *(uint32_t*)0x20000020 = 0; |
| *(uint32_t*)0x20000024 = 0; |
| *(uint32_t*)0x20000028 = 0; |
| *(uint32_t*)0x2000002c = 0; |
| *(uint32_t*)0x20000030 = 0; |
| *(uint32_t*)0x20000034 = 0; |
| *(uint32_t*)0x20000038 = 0; |
| *(uint32_t*)0x2000003c = 0; |
| *(uint32_t*)0x20000040 = 0; |
| *(uint32_t*)0x20000044 = 0; |
| *(uint32_t*)0x20000048 = 0; |
| *(uint32_t*)0x2000004c = 0; |
| *(uint32_t*)0x20000050 = 0; |
| *(uint32_t*)0x20000054 = 0xd0; |
| *(uint32_t*)0x20000058 = 0; |
| *(uint32_t*)0x2000005c = 0; |
| *(uint32_t*)0x20000060 = 0; |
| *(uint32_t*)0x20000064 = 0; |
| *(uint32_t*)0x20000068 = 0; |
| *(uint32_t*)0x2000006c = 0; |
| *(uint32_t*)0x20000070 = 0; |
| *(uint32_t*)0x20000074 = 0; |
| *(uint32_t*)0x20000078 = 0; |
| *(uint32_t*)0x2000007c = 0; |
| *(uint32_t*)0x20000080 = 0; |
| *(uint32_t*)0x20000084 = 0; |
| *(uint32_t*)0x20000088 = 0; |
| *(uint32_t*)0x2000008c = 0; |
| *(uint32_t*)0x20000090 = 0; |
| *(uint32_t*)0x20000094 = 0; |
| *(uint32_t*)0x20000098 = 0; |
| *(uint32_t*)0x2000009c = 0; |
| syscall(__NR_ioctl, r[0], 0x4601ul, 0x20000000ul); |
| res = syz_open_dev(0xc, 4, 0x14); |
| if (res != -1) |
| r[1] = res; |
| *(uint8_t*)0x20000000 = 0xe; |
| *(uint8_t*)0x20000001 = 0x9b; |
| *(uint8_t*)0x20000002 = 0x4a; |
| *(uint8_t*)0x20000003 = 0x9b; |
| *(uint8_t*)0x20000004 = 0; |
| *(uint8_t*)0x20000005 = 0; |
| *(uint8_t*)0x20000006 = 0; |
| *(uint8_t*)0x20000007 = 0; |
| *(uint64_t*)0x20000008 = 0; |
| *(uint16_t*)0x20000010 = 0; |
| *(uint16_t*)0x20000012 = 0; |
| *(uint32_t*)0x20000014 = 0; |
| *(uint64_t*)0x20000018 = 0; |
| *(uint64_t*)0x20000020 = 0x40; |
| *(uint64_t*)0x20000028 = 0; |
| *(uint32_t*)0x20000030 = 0; |
| *(uint16_t*)0x20000034 = 0; |
| *(uint16_t*)0x20000036 = 0x38; |
| *(uint16_t*)0x20000038 = 0; |
| *(uint16_t*)0x2000003a = 0; |
| *(uint16_t*)0x2000003c = 0; |
| *(uint16_t*)0x2000003e = 0; |
| *(uint32_t*)0x20000040 = 0; |
| *(uint32_t*)0x20000044 = 0; |
| *(uint64_t*)0x20000048 = 0; |
| *(uint64_t*)0x20000050 = 0; |
| *(uint64_t*)0x20000058 = 0; |
| *(uint64_t*)0x20000060 = 0; |
| *(uint64_t*)0x20000068 = 0; |
| *(uint64_t*)0x20000070 = 0; |
| syscall(__NR_write, r[1], 0x20000000ul, 0x78ul); |
| return 0; |
| } |