linux-kernel - Re: [syzbot] [mm?] kernel panic: corrupted stack end in userfaultfd

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Message-ID: <000000000000a3bf64061a101538@google.com>
Date: Tue, 04 Jun 2024 06:04:05 -0700
From: syzbot <syzbot+5a1cb2c00e895afca87e@...kaller.appspotmail.com>
To: hdanton@...a.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] kernel panic: corrupted stack end in userfaultfd_ioctl

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+5a1cb2c00e895afca87e@...kaller.appspotmail.com

Tested on:

commit:         2ab79514 Merge tag 'cxl-fixes-6.10-rc3' of git://git.k..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=108249bc980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=48aeb395bedeb71f
dashboard link: https://syzkaller.appspot.com/bug?extid=5a1cb2c00e895afca87e
compiler:       aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14d60c26980000

Note: testing is done by a robot and is best-effort only.