CVS commit: src/sys/net

["Ryota Ozaki" <ozaki-r%netbsd.org@localhost>]

Module Name:    src
Committed By:   ozaki-r
Date:           Fri Aug  3 09:54:40 UTC 2018

Modified Files:
        src/sys/net: if_tun.c

Log Message:
tun: fix locking against myself

filt_tunread is called with tun_lock held from tun_output (via tun_output =>
selnotify => knote), so we must not take tun_lock in filt_tunread.  The bug
is triggered only if a tun is used through kqueue.

Found by k-goda@IIJ


To generate a diff of this commit:
cvs rdiff -u -r1.144 -r1.145 src/sys/net/if_tun.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.