Re: [syzbot] [block?] general protection fault in zcomp_stream_get

From: Sergey Senozhatsky

Date: Fri Nov 14 2025 - 21:37:31 EST


On (25/11/14 17:36), syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 7a0892d2836e Merge tag 'pci-v6.18-fixes-5' of git://git.ke..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=12152914580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=19d831c6d0386a9c
> dashboard link: https://syzkaller.appspot.com/bug?extid=16a8410141ca18c0d963
> compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
>
> Unfortunately, I don't have any reproducer for this issue yet.

This will be difficult to understand w/o a reproducer.
I'll try to look at it, but it doesn't make a lot of sense
to me right now: raw_cpu_ptr(comp->stream) should work.