Re: [syzbot] [kernel?] BUG: unable to handle kernel NULL pointer dereference in tty_write_room

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+4e24c3e417773c914ee4@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         58390c8c Merge tag 'iommu-updates-v6.4' of git://git.k..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=136a4928280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5eadbf0d3c2ece89
dashboard link: https://syzkaller.appspot.com/bug?extid=4e24c3e417773c914ee4
compiler:       Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14758e2c280000

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