| // panic: Decrementing non-positive ref count |
| // https://syzkaller.appspot.com/bug?id=d49347605ea0d28a180a418ec8260660dd1b7496 |
| // status:fixed |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <endian.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| uint64_t r[1] = {0x0}; |
| void loop() |
| { |
| long res = 0; |
| res = syscall(__NR_shmget, 0x798dd816, 0x1000, 0x200, 0x20ffd000); |
| if (res != -1) |
| r[0] = res; |
| syscall(__NR_shmat, r[0], 0x20ffc000, 0x3000); |
| syscall(__NR_shmctl, r[0], 0); |
| syscall(__NR_shmctl, r[0], 0); |
| } |
| |
| int main() |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| loop(); |
| return 0; |
| } |