CVS commit: src/sys/kern

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Fri Oct  4 14:17:08 UTC 2019

Modified Files:
        src/sys/kern: subr_time.c

Log Message:
Avoid signed integer overflow in ts2timo() for ts->tv_nsec

The condition would be rechecked later again after subtracting start time
and most invalid inputs rejected. In corner cases the current code can
accept certain invalid inputs that will pass checks later and behave like
valid ones (due to signed integer overflow).

Reported-by: syzbot+3a4a07b62558bbbd3baa%syzkaller.appspotmail.com@localhost


To generate a diff of this commit:
cvs rdiff -u -r1.20 -r1.21 src/sys/kern/subr_time.c

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