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authorJohannes Berg <johannes.berg@intel.com>2015-05-05 16:32:29 +0200
committerJohannes Berg <johannes.berg@intel.com>2015-05-06 13:30:00 +0200
commite3a55b5399d55200c024fe0c2984dc7ad049da44 (patch)
tree3d01512741ad7b572f7ad25519680fe02dcce569 /net/wireless/chan.c
parenta31cf1c69e89e0c2d5515b04aca313f1014a714d (diff)
downloadlinux-e3a55b5399d55200c024fe0c2984dc7ad049da44.tar.gz
mac80211: validate cipher scheme PN length better
Currently, a cipher scheme can advertise an arbitrarily long
sequence counter, but mac80211 only supports up to 16 bytes
and the initial value from userspace will be truncated.

Fix two things:
 * don't allow the driver to register anything longer than
   the 16 bytes that mac80211 reserves space for
 * require userspace to specify a starting value with the
   correct length (or none at all)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/chan.c')
0 files changed, 0 insertions, 0 deletions