Module Name: src Committed By: riastradh Date: Sun Mar 13 17:52:46 UTC 2022
Modified Files: src/sys/kern: subr_time.c Log Message: kern: Fix fencepost error in ts2timo overflow checks. Triggered by clock_settime({.tv_sec=0, .tv_nsec=0}) clock_nanosleep({.tv_sec=LLONG_MIN, .tv_nsec=0}) so that, by the time we enter ts2timo (after a few nanoseconds have passed), we end up with tsd = {.tv_sec=0, .tv_nsec=nonzero} ts = {.tv_sec=LLONG_MIN, .tv_nsec=0} and the subtraction ts - tsd leads to a borrow from tv_sec. Reported-by: syzbot+14818113e9d0b45bc...@syzkaller.appspotmail.com To generate a diff of this commit: cvs rdiff -u -r1.31 -r1.32 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.