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| author |   cheloha <cheloha@openbsd.org> | 2019-01-31 05:00:18 +0000 |
|---|---|---|
| committer | cheloha <cheloha@openbsd.org> | 2019-01-31 05:00:18 +0000 |
| commit | e12a049bd4bbd1e8315c373a739e08972ed6dd1d (patch) | |
| tree | 89b2f2100ef5c9651266cbd1dec8063e3f74e8ed /lib/libcxx/src | |
| parent | use "sc" as the name of the softc variable in the ioctl code too. (diff) | |
| download | wireguard-openbsd-e12a049bd4bbd1e8315c373a739e08972ed6dd1d.tar.xz wireguard-openbsd-e12a049bd4bbd1e8315c373a739e08972ed6dd1d.zip | |
tc_setclock: Don't rewind the system uptime during resume/unhibernate.
When we come back from suspend/hibernate the BIOS/firmware/whatever can
hand us *any* TOD, so we need to check that the given TOD doesn't set our
boot offset backwards, breaking the monotonicity of e.g. CLOCK_MONOTONIC.
This is trivial to do from the BIOS on most PCs before unhibernating.
There might be other ways it can happen, accidentally or otherwise.
This is a bit messy but it can be made prettier later with a "bintimecmp"
macro or something like that.
Problem confirmed by jmatthew@.
"you are very likely right" deraadt@
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions