Re: [syzbot] [btrfs?] possible deadlock in btrfs_search_slot

[Aleksandr Nogikh]

On Tue, Aug 1, 2023 at 6:08 PM syzbot
<syzbot+c06034aecf9f5eab1ac1@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit b740d806166979488e798e41743aaec051f2443f
> Author: Josef Bacik <josef@xxxxxxxxxxxxxx>
> Date:   Mon Nov 7 16:44:51 2022 +0000
>
>     btrfs: free btrfs_path before copying root refs to userspace
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13015709a80000
> start commit:   eb7081409f94 Linux 6.1-rc6
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=8d01b6e3197974dd
> dashboard link: https://syzkaller.appspot.com/bug?extid=c06034aecf9f5eab1ac1
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=124fc309880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=126dfde5880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: btrfs: free btrfs_path before copying root refs to userspace

Looks reasonable.
#syz fix: btrfs: free btrfs_path before copying root refs to userspace

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