linux-kernel - Re: [syzbot] [btrfs?] possible deadlock in btrfs_search

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Message-ID: <000000000000261e660601dec2c2@google.com>
Date:   Tue, 01 Aug 2023 09:08:31 -0700
From:   syzbot <syzbot+c06034aecf9f5eab1ac1@...kaller.appspotmail.com>
To:     anand.jain@...cle.com, clm@...com, dsterba@...e.com,
        hdanton@...a.com, josef@...icpanda.com,
        linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [btrfs?] possible deadlock in btrfs_search_slot

syzbot suspects this issue was fixed by commit:

commit b740d806166979488e798e41743aaec051f2443f
Author: Josef Bacik <josef@...icpanda.com>
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

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