linux-kernel - Re: [syzbot] [virt?] upstream test error: KMSAN: use-after-free in vring_map_one

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <68ea2142.050a0220.91a22.01cb.GAE@google.com>
Date: Sat, 11 Oct 2025 02:20:02 -0700
From: syzbot <syzbot+ac856b8b866cca41352c@...kaller.appspotmail.com>
To: eperezma@...hat.com, jasowang@...hat.com, linux-kernel@...r.kernel.org, 
	mst@...hat.com, syzkaller-bugs@...glegroups.com, 
	virtualization@...ts.linux.dev, xuanzhuo@...ux.alibaba.com
Subject: Re: [syzbot] [virt?] upstream test error: KMSAN: use-after-free in vring_map_one_sg

Hello,

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

Reported-by: syzbot+ac856b8b866cca41352c@...kaller.appspotmail.com
Tested-by: syzbot+ac856b8b866cca41352c@...kaller.appspotmail.com

Tested on:

commit:         07394736 Merge tag 'for-6.18/hpfs-changes' of git://gi..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=60ff1a9f60b0f77d
dashboard link: https://syzkaller.appspot.com/bug?extid=ac856b8b866cca41352c
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=17a7a9e2580000

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