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authorJohannes Berg <johannes@sipsolutions.net>2009-03-23 17:28:40 +0100
committerJohn W. Linville <linville@tuxdriver.com>2009-03-27 20:13:22 -0400
commita220858d30604902f650074bfac5a7598bc97ea4 (patch)
tree3a4ad6d80713953598f6f872103291e69cf1ac6b /Makefile
parentb1720231ca07dee3382980f3b25e6581bd2e54e9 (diff)
mac80211: add skb length sanity checking
We just found a bug in zd1211rw where it would reject packets in the ->tx() method but leave them modified, which would cause retransmit attempts with completely bogus skbs, eventually leading to a panic due to not having enough headroom in those. This patch adds a sanity check to mac80211 to catch such driver mistakes; in this case we warn and drop the skb. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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