linux-kernel - Re: [syzbot] [fs?] BUG: sleeping function called from invalid context in hook_sb

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Message-ID: <68e82163.050a0220.3897dc.00a3.GAE@google.com>
Date: Thu, 09 Oct 2025 13:56:03 -0700
From: syzbot <syzbot+12479ae15958fc3f54ec@...kaller.appspotmail.com>
To: brauner@...nel.org, eadavis@...com, gnoack@...gle.com, hdanton@...a.com, 
	jack@...e.cz, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-security-module@...r.kernel.org, max.kellermann@...os.com, 
	mic@...ikod.net, syzkaller-bugs@...glegroups.com, twuufnxlz@...il.com, 
	viro@...iv.linux.org.uk
Subject: Re: [syzbot] [fs?] BUG: sleeping function called from invalid context
 in hook_sb_delete

syzbot has bisected this issue to:

commit 2ef435a872abc347dc0a92f1c213bb0af3cbf195
Author: Max Kellermann <max.kellermann@...os.com>
Date:   Wed Sep 17 15:36:31 2025 +0000

    fs: add might_sleep() annotation to iput() and more

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1092ba7c580000
start commit:   7c3ba4249a36 Add linux-next specific files for 20251008
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1292ba7c580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1492ba7c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=fa7a95b14b1eaa
dashboard link: https://syzkaller.appspot.com/bug?extid=12479ae15958fc3f54ec
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12280dcd980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=111d852f980000

Reported-by: syzbot+12479ae15958fc3f54ec@...kaller.appspotmail.com
Fixes: 2ef435a872ab ("fs: add might_sleep() annotation to iput() and more")

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