linux-kernel - Re: [syzbot] KASAN: out-of-bounds Write in end_buffer_read

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Message-ID: <000000000000309f9e05e598b315@google.com>
Date:   Sat, 06 Aug 2022 13:48:07 -0700
From:   syzbot <syzbot+3f7f291a3d327486073c@...kaller.appspotmail.com>
To:     almaz.alexandrovich@...agon-software.com,
        gautammenghani201@...il.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] KASAN: out-of-bounds Write in end_buffer_read_sync

syzbot has bisected this issue to:

commit 6e5be40d32fb1907285277c02e74493ed43d77fe
Author: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Date:   Fri Aug 13 14:21:30 2021 +0000

    fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14aab3ca080000
start commit:   200e340f2196 Merge tag 'pull-work.dcache' of git://git.ker..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16aab3ca080000
console output: https://syzkaller.appspot.com/x/log.txt?x=12aab3ca080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a3f4d6985d3164cd
dashboard link: https://syzkaller.appspot.com/bug?extid=3f7f291a3d327486073c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15e211fa080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14866761080000

Reported-by: syzbot+3f7f291a3d327486073c@...kaller.appspotmail.com
Fixes: 6e5be40d32fb ("fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile")

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