| // WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected |
| // https://syzkaller.appspot.com/bug?id=0e06e9b4ed9a043361196cb8413cdc16a15b4b1f |
| // status:fixed |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <endian.h> |
| #include <fcntl.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| 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 execute_one(); |
| extern unsigned long long procid; |
| |
| void loop() |
| { |
| while (1) { |
| execute_one(); |
| } |
| } |
| |
| uint64_t r[1] = {0xffffffffffffffff}; |
| void execute_one() |
| { |
| long res = 0; |
| memcpy((void*)0x20057fee, "/dev/input/event#", 18); |
| res = syz_open_dev(0x20057fee, 0xafd, 0x8000040000002); |
| if (res != -1) |
| r[0] = res; |
| *(uint64_t*)0x200000c0 = 0; |
| *(uint64_t*)0x200000c8 = 0; |
| *(uint16_t*)0x200000d0 = 2; |
| *(uint16_t*)0x200000d2 = 0; |
| *(uint32_t*)0x200000d4 = 0x403; |
| *(uint64_t*)0x200000d8 = 0; |
| *(uint64_t*)0x200000e0 = 0; |
| *(uint16_t*)0x200000e8 = 7; |
| *(uint16_t*)0x200000ea = 0xd804; |
| *(uint32_t*)0x200000ec = 0; |
| syscall(__NR_write, r[0], 0x200000c0, 0x30); |
| } |
| |
| int main() |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| for (;;) { |
| loop(); |
| } |
| } |