linux-kernel - Re: [syzbot] [mm?] INFO: rcu detected stall in validate

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Message-ID: <000000000000d89405061c5382f2@google.com>
Date: Wed, 03 Jul 2024 01:21:03 -0700
From: syzbot <syzbot+a941018a091f1a1f9546@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, radoslaw.zielonek@...il.com, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in validate_mm (3)

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed

2024/07/03 08:20:07 parsed 1 programs
2024/07/03 08:20:07 [FATAL] failed to run ["./syz-executor" "setup" "fault" "binfmt_misc" "usb" "802154" "swap"]: exit status 67
mkdir(/syzcgroup) failed: 17
mount(binfmt_misc) failed: 16
write(/proc/sys/fs/binfmt_misc/register) failed: 17
SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
 (errno 17: File exists)

Tested on:

commit:         dccb07f2 Merge tag 'for-6.9-rc7-tag' of git://git.kern..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=1657d115980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7144b4fe7fbf5900
dashboard link: https://syzkaller.appspot.com/bug?extid=a941018a091f1a1f9546
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=10a5a915980000