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authorStanislaw Gruszka <sgruszka@redhat.com>2011-04-20 16:01:46 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-04-20 16:05:59 -0400
commit069f40fc07f6df3da325e7ea1698a0d6247983d5 (patch)
tree2717c5d0c0f1437e63b6d77565b1fd4dc39b13b2 /net
parentb25026981aecde3685dd0e45ad980fff9f528daa (diff)
iwl4965: fix skb usage after free
Since commit a120e912eb51e347f36c71b60a1d13af74d30e83 Author: Stanislaw Gruszka <sgruszka@redhat.com> Date: Fri Feb 19 15:47:33 2010 -0800 iwlwifi: sanity check before counting number of tfds can be free we use skb->data after calling ieee80211_tx_status_irqsafe(), which could free skb instantly. On current kernels I do not observe practical problems related with bug, but on 2.6.35.y it cause random system hangs when stressing wireless link, making bisection of other problems impossible. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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