linux-kernel - Re: [syzbot] [exfat?] kernel BUG in folio_set

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Message-ID: <68663a26.a70a0220.5d25f.0856.GAE@google.com>
Date: Thu, 03 Jul 2025 01:07:02 -0700
From: syzbot <syzbot+f4f84b57a01d6b8364ad@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, hare@...e.de, 
	hirofumi@...l.parknet.co.jp, linkinjeon@...nel.org, 
	linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mcgrof@...nel.org, sj1557.seo@...sung.com, 
	syzkaller-bugs@...glegroups.com, willy@...radead.org
Subject: Re: [syzbot] [exfat?] kernel BUG in folio_set_bh

syzbot has bisected this issue to:

commit 47dd67532303803a87f43195e088b3b4bcf0454d
Author: Luis Chamberlain <mcgrof@...nel.org>
Date:   Fri Feb 21 22:38:22 2025 +0000

    block/bdev: lift block size restrictions to 64k

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15ec33d4580000
start commit:   50c8770a42fa Add linux-next specific files for 20250702
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=17ec33d4580000
console output: https://syzkaller.appspot.com/x/log.txt?x=13ec33d4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d831c9dfe03f77ec
dashboard link: https://syzkaller.appspot.com/bug?extid=f4f84b57a01d6b8364ad
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15c93770580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1001aebc580000

Reported-by: syzbot+f4f84b57a01d6b8364ad@...kaller.appspotmail.com
Fixes: 47dd67532303 ("block/bdev: lift block size restrictions to 64k")

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