diff options
| author | Eliad Peller <eliad@wizery.com> | 2014-07-17 16:00:56 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-07-18 11:53:56 +0400 |
| commit | 8c26d458394be44e135d1c6bd4557e1c4e1a0535 (patch) | |
| tree | a7568b79cc1c4bce6eb0064bc37c48e34711f050 /net | |
| parent | 08b9939997df30e42a228e1ecb97f99e9c8ea84e (diff) | |
| download | linux-8c26d458394be44e135d1c6bd4557e1c4e1a0535.tar.xz | |
cfg80211: fix mic_failure tracing
tsc can be NULL (mac80211 currently always passes NULL),
resulting in NULL-dereference. check before copying it.
Cc: stable@vger.kernel.org
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>
Diffstat (limited to 'net')
| -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 560ed77084e9..7cc887f9da11 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2094,7 +2094,8 @@ 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, |