radiotap: fix bitmap-end-finding buffer overrun

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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>

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Johannes Berg 2013-12-16 12:04:36 +01:00

parent 4c4d684a55

commit bd02cd2549

1 changed files with 4 additions and 0 deletions

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net/wireless/radiotap.c

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