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(parent: 4c4d684) | patch
radiotap: fix bitmap-end-finding buffer overrun
authorJohannes Berg <johannes.berg@intel.com>
Mon, 16 Dec 2013 11:04:36 +0000 (12:04 +0100)
committerJohannes Berg <johannes.berg@intel.com>
Mon, 16 Dec 2013 11:06:43 +0000 (12:06 +0100)
commitbd02cd2549cfcdfc57cb5ce57ffc3feb94f70575
treed43aaa563d7e977e8b8122777baef54930528049tree | snapshot
parent4c4d684a55fc01dac6bee696efc56b96d0e6c03acommit | diff
radiotap: fix bitmap-end-finding buffer overrun

Evan Huus found (by fuzzing in wireshark) that the radiotap
iterator code can access beyond the length of the buffer if
the first bitmap claims an extension but then there's no
data at all. Fix this.

Cc: stable@vger.kernel.org
Reported-by: Evan Huus <eapache@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/wireless/radiotap.c diff | blob | history
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