Re: [syzbot] unexpected kernel reboot (5)

[Tetsuo Handa]

On 2021/05/27 15:40, Dmitry Vyukov wrote:
> The reproducer writes into /sys/power/state. I assume this is an
> intentional way to reboot a machine and we can't let the fuzzer mess
> with all sysfs files with:
> 
> openat$sysfs(fd const[AT_FDCWD], dir ptr[in, glob["/sys/**/*"]], flags
> flags[open_flags], mode flags[open_mode]) fd
> 
> +Joey, how do you deal with this?
> 

I have CaitSith LSM module ( https://caitsith.osdn.jp/#5.2 ).
Maybe we could invent a simple LSM module for excluding access to specific pseudo files?