Re: [syzbot] [fs?] WARNING: bad unlock balance in query_matching_vma

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On Tue, 15 Jul 2025 03:09:02 -0700 syzbot <syzbot+d4316c39e84f412115c9@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> syzbot has bisected this issue to:
> 
> commit fb8a9ee1f05345b1fae37902d32d954d2150437b
> Author: Suren Baghdasaryan <surenb@xxxxxxxxxx>
> Date:   Fri Jul 4 06:07:26 2025 +0000
> 
>     fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=171c27d4580000
> start commit:   a62b7a37e6fc Add linux-next specific files for 20250711
> git tree:       linux-next
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=149c27d4580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=109c27d4580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=bb4e3ec360fcbd0f
> dashboard link: https://syzkaller.appspot.com/bug?extid=d4316c39e84f412115c9
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14ad50f0580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1173018c580000
> 
> Reported-by: syzbot+d4316c39e84f412115c9@xxxxxxxxxxxxxxxxxxxxxxxxx

Thanks.

This email (and the original bug report) lacked a cc:linux-mm@xxxxxxxxx.

> Fixes: fb8a9ee1f053 ("fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks")

Could I suggest that your scripts be altered to parse the fb8a9ee1f053
changelog for its Link:, fetch the submitter's original email and from
that, figure out which mailing list(s) were cc'ed?

> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Suren, I'll drop the v6 series from mm-new.  Links which I have
accumulated are:

https://lkml.kernel.org/r/6871f94b.a00a0220.26a83e.0070.GAE@xxxxxxxxxx
https://lkml.kernel.org/r/f532558b-b19a-40ea-b594-94d1ba92188d@lucifer.local
https://lkml.kernel.org/r/687628be.a00a0220.3af5df.0002.GAE@xxxxxxxxxx
https://lkml.kernel.org/r/687628be.a00a0220.3af5df.0002.GAE@xxxxxxxxxx




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