linux-kernel - Re: [syzbot] [mm?] WARNING: lock held when returning to user space in lock_next

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Message-ID: <6870772b.a00a0220.26a83e.0030.GAE@google.com>
Date: Thu, 10 Jul 2025 19:30:03 -0700
From: syzbot <syzbot+80011ad33eec39e6ce42@...kaller.appspotmail.com>
To: hdanton@...a.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] WARNING: lock held when returning to user space in lock_next_vma

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to apply patch:
checking file fs/proc/task_mmu.c
Hunk #1 succeeded at 585 (offset -1 lines).
Hunk #2 succeeded at 621 with fuzz 2 (offset -10 lines).
Hunk #4 FAILED at 736.
1 out of 4 hunks FAILED



Tested on:

commit:         b551c4e2 Add linux-next specific files for 20250710
git tree:       linux-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=1e4f88512ae53408
dashboard link: https://syzkaller.appspot.com/bug?extid=80011ad33eec39e6ce42
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=130120f0580000