Re: [syzbot] [bluetooth?] KASAN: null-ptr-deref Read in l2cap_chan_hold_unless_zero

[syzbot]

Hello,

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

Reported-by: syzbot+e6382a2f53f5fc7453ac@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+e6382a2f53f5fc7453ac@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         b95f03f0 Merge tag 'mm-hotfixes-stable-2026-07-20-11-3..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=123b8ab9580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=48ef5c5c0f192153
dashboard link: https://syzkaller.appspot.com/bug?extid=e6382a2f53f5fc7453ac
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch:          https://syzkaller.appspot.com/x/patch.diff?x=13b912b9580000

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