tree 2717c5d0c0f1437e63b6d77565b1fd4dc39b13b2
parent b25026981aecde3685dd0e45ad980fff9f528daa
author Stanislaw Gruszka <sgruszka@redhat.com> 1303308106 +0200
committer John W. Linville <linville@tuxdriver.com> 1303329959 -0400

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>