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

[syzbot]

Hello,

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

Reported-by: syzbot+40339ea82afa8184ad5d@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+40339ea82afa8184ad5d@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         5cbb61bf arm64/fpsimd: ptrace: zero target's fpsimd_st..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=13ce6536580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a834c6344141a58b
dashboard link: https://syzkaller.appspot.com/bug?extid=40339ea82afa8184ad5d
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
userspace arch: arm64
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11d66536580000

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