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

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Message-ID: <CAJuCfpGur7p19=HKkmqfD-KXf6FEbvwCV1ewFgBCGPDkoY0Wdw@mail.gmail.com>
Date: Thu, 5 Jun 2025 11:34:12 -0700
From: Suren Baghdasaryan <surenb@...gle.com>
To: syzbot <syzbot+556fda2d78f9b0daa141@...kaller.appspotmail.com>
Cc: akpm@...ux-foundation.org, asml.silence@...il.com, axboe@...nel.dk, 
	eadavis@...com, io-uring@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, shivankg@....com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in lock_vma_under_rcu

On Mon, May 26, 2025 at 1:50 AM syzbot
<syzbot+556fda2d78f9b0daa141@...kaller.appspotmail.com> wrote:
>
> This bug is marked as fixed by commit:
> mm: fix a crash due to vma_end_read() that should have been removed
>
> But I can't find it in the tested trees[1] for more than 90 days.
> Is it a correct commit? Please update it by replying:
>
> #syz fix: exact-commit-title

Yeah, the fix was folded into the original patch

#syz fix: mm: replace vm_lock and detached flag with a reference count

>
> Until then the bug is still considered open and new crashes with
> the same signature are ignored.
>
> Kernel: Linux
> Dashboard link: https://syzkaller.appspot.com/bug?extid=556fda2d78f9b0daa141
>
> ---
> [1] I expect the commit to be present in:
>
> 1. for-kernelci branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
>
> 2. master branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
>
> 3. master branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
>
> 4. main branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
>
> The full list of 10 trees can be found at
> https://syzkaller.appspot.com/upstream/repos