linux-kernel - Re: [syzbot] [reiserfs?] KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap

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Date: Fri, 09 Feb 2024 18:39:03 -0800
From: syzbot <syzbot+174ea873dedcd7fb6de3@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, bvanassche@....org, 
	damien.lemoal@...nsource.wdc.com, jack@...e.cz, jlayton@...nel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, neilb@...e.de, 
	reiserfs-devel@...r.kernel.org, song@...nel.org, 
	syzkaller-bugs@...glegroups.com, willy@...radead.org, yi.zhang@...wei.com
Subject: Re: [syzbot] [reiserfs?] KASAN: vmalloc-out-of-bounds Read in cleanup_bitmap_list

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=1257a6ec180000
start commit:   f5837722ffec Merge tag 'mm-hotfixes-stable-2023-12-27-15-0..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=f8e72bae38c079e4
dashboard link: https://syzkaller.appspot.com/bug?extid=174ea873dedcd7fb6de3
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14db6ca1e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12159e5ee80000

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