linux-kernel - Re: [syzbot] general protection fault in __pm_runtime

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Message-ID: <bc933e26-92f3-cfa6-9500-609c2d1015a2@gmail.com>
Date:   Sun, 13 Mar 2022 20:29:50 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     syzbot <syzbot+b9bd12fbed3485a3e51f@...kaller.appspotmail.com>
Cc:     gregkh@...uxfoundation.org, len.brown@...el.com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        pavel@....cz, rafael@...nel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in __pm_runtime_resume (2)

On 3/13/22 20:27, syzbot wrote:
>> On 3/13/22 08:35, syzbot wrote:
>>> Hello,
>>> 
>>> syzbot found the following issue on:
>>> 
>>> HEAD commit:    92f90cc9fe0e Merge tag 'fuse-fixes-5.17-rc8' of git://git...
>>> git tree:       upstream
>>> console output: https://syzkaller.appspot.com/x/log.txt?x=118cd3be700000
>>> kernel config:  https://syzkaller.appspot.com/x/.config?x=442f8ac61e60a75e
>>> dashboard link: https://syzkaller.appspot.com/bug?extid=b9bd12fbed3485a3e51f
>>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15b64e79700000
>>> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1652811a700000
>>> 
>>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>>> Reported-by: syzbot+b9bd12fbed3485a3e51f@...kaller.appspotmail.com
>>> 
>>
>> hu->serdev should be checked before passing to pm functions
>>
>> #syz test:
> 
> want 2 args (repo, branch), got 3
> 

Woops

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master



With regards,
Pavel Skripkin
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