linux-kernel - Re: [syzbot] [btrfs?] WARNING in btrfs_free_reserved_data_space

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Date:   Tue, 01 Aug 2023 02:27:22 -0700
From:   syzbot <syzbot+adec8406ad17413d4c06@...kaller.appspotmail.com>
To:     axboe@...nel.dk, christophe.leroy@...roup.eu, clm@...com,
        dsterba@...e.com, josef@...icpanda.com,
        linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, mpe@...erman.id.au,
        npiggin@...il.com, shuah@...nel.org,
        syzkaller-bugs@...glegroups.com, torvalds@...ux-foundation.org,
        ye.xingchen@....com.cn
Subject: Re: [syzbot] [btrfs?] WARNING in btrfs_free_reserved_data_space_noquota

syzbot suspects this issue was fixed by commit:

commit 487c20b016dc48230367a7be017f40313e53e3bd
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Thu Mar 30 21:53:51 2023 +0000

    iov: improve copy_iovec_from_user() code generation

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17cfdf19a80000
start commit:   4bdec23f971b Merge tag 'hwmon-for-v6.3-rc4' of git://git.k..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=acdb62bf488a8fe5
dashboard link: https://syzkaller.appspot.com/bug?extid=adec8406ad17413d4c06
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11bf8bcec80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=153d4f75c80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: iov: improve copy_iovec_from_user() code generation

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