[syzbot] [audit?] general protection fault in smack_log_callback

[syzbot]

Hello,

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

Reported-by: syzbot+044fdf24e96093584232 at syzkaller.appspotmail.com
Tested-by: syzbot+044fdf24e96093584232 at syzkaller.appspotmail.com

Tested on:

commit:         2004cef1 Merge tag 'sched-core-2024-09-19' of git://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1784c427980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=38d475ce6711b8b4
dashboard link: https://syzkaller.appspot.com/bug?extid=044fdf24e96093584232
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=162b369f980000

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