Re: [syzbot] [dm?] KASAN: null-ptr-deref Read in dm_kcopyd_client_destroy

[syzbot]

Hello,

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

Reported-by: syzbot+a2626a25eb2595e3ec3c@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+a2626a25eb2595e3ec3c@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         4169c9c9 powerpc/irq: Fix build with CONFIG_PROC_FS=n
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=108a238e580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e397d1e24d3cb03
dashboard link: https://syzkaller.appspot.com/bug?extid=a2626a25eb2595e3ec3c
compiler:       Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=10aa6195580000

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