Re: [syzbot] [media?] KASAN: slab-use-after-free Read in dvb_device_open

[syzbot]

Hello,

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

Reported-by: syzbot+1eb177ecc3943b883f0a@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+1eb177ecc3943b883f0a@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         4f88ca5c media: dvbdev: prevent double put of dvb device
git tree:       https://github.com/ea1davis/linux mdbc/syz
console output: https://syzkaller.appspot.com/x/log.txt?x=12fb3fc4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e8d97faf7b870c89
dashboard link: https://syzkaller.appspot.com/bug?extid=1eb177ecc3943b883f0a
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.