linux-kernel - Re: [syzbot] [udf?] KASAN: slab-use-after-free Read in udf_free

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Date: Sat, 02 Mar 2024 07:19:04 -0800
From: syzbot <syzbot+0b7937459742a0a4cffd@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, axboe@...nel.dk, brauner@...nel.org, 
	eadavis@...com, hch@....de, jack@...e.com, jack@...e.cz, linkinjeon@...il.com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, syzkaller-bugs@...glegroups.com, willy@...radead.org
Subject: Re: [syzbot] [udf?] KASAN: slab-use-after-free Read in udf_free_blocks

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=11030516180000
start commit:   f8dba31b0a82 Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' ..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=3c980bfe8b399968
dashboard link: https://syzkaller.appspot.com/bug?extid=0b7937459742a0a4cffd
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bcb6b5280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12fbcfd1280000

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