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(parent: 6891c6f) | patch
mac80211: use constant time comparison with keys
authorJason A. Donenfeld <Jason@zx2c4.com>
Tue, 17 Oct 2017 18:32:07 +0000 (20:32 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 18 Nov 2017 10:06:29 +0000 (11:06 +0100)
commit32025b5c58605cdc0552d7976d010f10fa13f28a
tree5299d9ce6b82c5cbe0a1b3eca626a56acca30f79tree
parent6891c6fd2a500d1f39d1426765f610bdc2c2a39dcommit | diff
mac80211: use constant time comparison with keys

commit 2bdd713b92a9cade239d3c7d15205a09f556624d upstream.

Otherwise we risk leaking information via timing side channel.

Fixes: fdf7cb4185b6 ("mac80211: accept key reinstall without changing anything")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/mac80211/key.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git