Re: [syzbot] [sound?] KASAN: use-after-free Read in release_card_device

From: syzbot

Date: Fri Aug 14 2026 - 03:41:35 EST


Hello,

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

Reported-by: syzbot+7061d72c26b7daebe2b4@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+7061d72c26b7daebe2b4@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 2f1baf1f Merge tag 'trace-v7.2-rc7' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12a73a9e580000
kernel config: https://syzkaller.appspot.com/x/.config?x=aaf0da806f995318
dashboard link: https://syzkaller.appspot.com/bug?extid=7061d72c26b7daebe2b4
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=17585279580000

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