mac80211: validate cipher scheme PN length better

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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>

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This commit is contained in:

Johannes Berg 2015-05-05 16:32:29 +02:00

parent a31cf1c69e

commit e3a55b5399

2 changed files with 10 additions and 5 deletions

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10

net/mac80211/key.c

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5

net/mac80211/main.c

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