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| author | Eliad Peller <eliad@wizery.com> | 2014-07-17 15:00:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-07 14:52:36 -0700 |
| commit | a09c414618fc7587eac9e101602fd213ee4c1549 (patch) | |
| tree | d9c131a3db21af98d0eada9bb1cfce15c5b424dc /net/wireless/trace.h | |
| parent | b3621670c78d883d86a173bbb30a4effe9eb69fb (diff) | |
| download | lwn-a09c414618fc7587eac9e101602fd213ee4c1549.tar.gz lwn-a09c414618fc7587eac9e101602fd213ee4c1549.zip | |
cfg80211: fix mic_failure tracing
commit 8c26d458394be44e135d1c6bd4557e1c4e1a0535 upstream.
tsc can be NULL (mac80211 currently always passes NULL),
resulting in NULL-dereference. check before copying it.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/wireless/trace.h')
| -rw-r--r-- | net/wireless/trace.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/wireless/trace.h b/net/wireless/trace.h index fbcc23edee54..b89eb3990f0a 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2068,7 +2068,8 @@ TRACE_EVENT(cfg80211_michael_mic_failure, MAC_ASSIGN(addr, addr); __entry->key_type = key_type; __entry->key_id = key_id; - memcpy(__entry->tsc, tsc, 6); + if (tsc) + memcpy(__entry->tsc, tsc, 6); ), TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT ", key type: %d, key id: %d, tsc: %pm", NETDEV_PR_ARG, MAC_PR_ARG(addr), __entry->key_type, |