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

From: syzbot

Date: Sat Oct 11 2025 - 05:20:16 EST


Hello,

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

Reported-by: syzbot+ac856b8b866cca41352c@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+ac856b8b866cca41352c@xxxxxxxxxxxxxxxxxxxxxxxxx

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.