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SubjectRe: [syzbot] KASAN: use-after-free Read in post_one_notification
On Mon, Aug 01, 2022 at 03:54:09AM -0700, syzbot wrote:
> Hello,
>
> syzbot has tested the proposed patch and the reproducer did not trigger any issue:
>
> Reported-and-tested-by: syzbot+c70d87ac1d001f29a058@syzkaller.appspotmail.com
>
> Tested on:
>
> commit: 3d7cb6b0 Linux 5.19
> git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> console output: https://syzkaller.appspot.com/x/log.txt?x=14066d7a080000
> kernel config: https://syzkaller.appspot.com/x/.config?x=70dd99d568a89e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=c70d87ac1d001f29a058
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Note: no patches were applied.
> Note: testing is done by a robot and is best-effort only.

It appears this was already fixed, so no need for any more activity on this bug:

#syz fix: watchqueue: make sure to serialize 'wqueue->defunct' properly

- Eric

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