[syzbot] [keyrings?] [lsm?] KASAN: slab-use-after-free Read in key_put

[syzbot]

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

security/keys/gc.c:146:40: error: 'KEY_IS_DEAD' undeclared (first use in this function); did you mean 'KEY_USR_READ'?


Tested on:

commit:         9fb2cfa4 Merge tag 'pull-ufs' of git://git.kernel.org/..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=55f8591b98dd132
dashboard link: https://syzkaller.appspot.com/bug?extid=6105ffc1ded71d194d6d
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1781eac0580000