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cfg80211: fix mic_failure tracing

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tsc can be NULL (mac80211 currently always passes NULL),
resulting in NULL-dereference. check before copying it.

Cc: [email protected]
Signed-off-by: Eliad Peller <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Eliad Peller 2014-07-17 15:00:56 +03:00 • committed by Johannes Berg
commit 8c26d45839
1 changed files with 2 additions and 1 deletions
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3
net/wireless/trace.h
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@ -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,