linux-kernel - Re: [syzbot] [ntfs3?] UBSAN: shift-out-of-bounds in ntfs

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Message-ID: <000000000000c5b2ae0612ef94a9@google.com>
Date: Tue, 05 Mar 2024 12:21:02 -0800
From: syzbot <syzbot+4768a8f039aa677897d0@...kaller.appspotmail.com>
To: almaz.alexandrovich@...agon-software.com, anton@...era.com, 
	axboe@...nel.dk, brauner@...nel.org, ghandatmanas@...il.com, 
	gregkh@...uxfoundation.org, jack@...e.cz, linkinjeon@...nel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel-mentees@...ts.linuxfoundation.org, 
	linux-kernel@...r.kernel.org, linux-ntfs-dev@...ts.sourceforge.net, 
	lkp@...el.com, llvm@...ts.linux.dev, ntfs3@...ts.linux.dev, 
	oe-kbuild-all@...ts.linux.dev, syzkaller-bugs@...glegroups.com, 
	syzkaller@...glegroups.com
Subject: Re: [syzbot] [ntfs3?] UBSAN: shift-out-of-bounds in ntfs_iget

syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <jack@...e.cz>
Date:   Wed Nov 1 17:43:10 2023 +0000

    fs: Block writes to mounted block devices

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12be09f2180000
start commit:   afead42fdfca Merge tag 'perf-tools-fixes-for-v6.4-2-2023-0..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453
dashboard link: https://syzkaller.appspot.com/bug?extid=4768a8f039aa677897d0
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12da9bbd280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=174e8115280000

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

#syz fix: fs: Block writes to mounted block devices

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