linux-kernel - Re: [syzbot] [ntfs3?] KASAN: out-of-bounds Write in end_buffer_read

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Message-ID: <000000000000703731062013a8cc@google.com>
Date: Mon, 19 Aug 2024 18:51:02 -0700
From: syzbot <syzbot+3f7f291a3d327486073c@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, almaz.alexandrovich@...agon-software.com, 
	axboe@...nel.dk, brauner@...nel.org, cmllamas@...gle.com, elver@...gle.com, 
	gautammenghani201@...il.com, glider@...gle.com, guohui.study@...il.com, 
	jack@...e.cz, konishi.ryusuke@...il.com, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mark.rutland@....com, mingo@...nel.org, 
	nogikh@...gle.com, ntfs3@...ts.linux.dev, p.raghav@...sung.com, 
	paulmck@...nel.org, peterz@...radead.org, syzkaller-bugs@...glegroups.com, 
	ubizjak@...il.com, viro@...iv.linux.org.uk, willy@...radead.org
Subject: Re: [syzbot] [ntfs3?] 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=11eaec05980000
start commit:   cc8ed4d0a848 Merge tag 'drm-fixes-2024-06-01' of https://g..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=13eaec05980000
console output: https://syzkaller.appspot.com/x/log.txt?x=15eaec05980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b9016f104992d69c
dashboard link: https://syzkaller.appspot.com/bug?extid=3f7f291a3d327486073c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14146f2c980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12400be6980000

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