Re: [syzbot] general protection fault in release_udmabuf

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+c80e9ef5d8bb45894db0@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         7ebfc85e Merge tag 'net-6.0-rc1' of git://git.kernel.o..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=15378a47080000
kernel config:  https://syzkaller.appspot.com/x/.config?x=924833c12349a8c0
dashboard link: https://syzkaller.appspot.com/bug?extid=c80e9ef5d8bb45894db0
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14e079e3080000

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