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SubjectRe: KASAN: slab-out-of-bounds Read in btrfs_scan_one_device
On Mon, Dec 7, 2020 at 10:34 AM syzbot
<syzbot+c4b1e5278d93269fd69c@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 0697d9a610998b8bdee6b2390836cb2391d8fd1a
> Author: Johannes Thumshirn <johannes.thumshirn@wdc.com>
> Date: Wed Nov 18 09:03:26 2020 +0000
>
> btrfs: don't access possibly stale fs_info data for printing duplicate device
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10fb0d9b500000
> start commit: 521b619a Merge tag 'linux-kselftest-kunit-fixes-5.10-rc3' ..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=e791ddf0875adf65
> dashboard link: https://syzkaller.appspot.com/bug?extid=c4b1e5278d93269fd69c
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16296f5c500000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1614e746500000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: btrfs: don't access possibly stale fs_info data for printing duplicate device
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix:
btrfs: don't access possibly stale fs_info data for printing duplicate device

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