CVSROOT:        /cvs
Module name:    src
Changes by:     an...@cvs.openbsd.org   2020/03/24 01:53:24

Modified files:
        sys/dev/wscons : wskbd.c wsmouse.c wsmux.c 

Log message:
Ensure that me_evp is still NULL before assignment during open of wscons
devices. This condition is checked early on during open but since the
same routine could end up sleeping before assigning me_evp, a race
against adding the same wscons device to a wsmux could be lost. This in
turn can cause a NULL deference during close.

ok mpi@

Reported-by: syzbot+34c3041bfd96c888c...@syzkaller.appspotmail.com

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