Messages in this thread | | | Date | Mon, 26 Sep 2022 20:01:25 +0200 | From | Takashi Iwai <> | Subject | Re: A divide error bug in snd_pcm_write |
| |
On Mon, 26 Sep 2022 19:16:48 +0200, butt3rflyh4ck wrote: > > The latest kernel upstream. > Yes, but using mmap, you can map the runtime->status page, and then > copy the data through memcpy to overwrite the status->state data, or > even more, which is incredible.
Ah, then that's exactly the case my latest patch set covers. Either the first patch or the second patch alone should work. https://lore.kernel.org/r/20220926135558.26580-2-tiwai@suse.de https://lore.kernel.org/r/20220926135558.26580-3-tiwai@suse.de
Could you verify either of them fixes the problem?
thanks,
Takashi
| |