diff options
| author | Nickolai Zeldovich <nickolai@csail.mit.edu> | 2013-01-06 20:27:22 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-01-07 14:34:44 -0500 |
| commit | c4f74d35cac7cbc44877313b69550e2f5aeae77d (patch) | |
| tree | 54b87003d82ace8947fb143057776807bc14af4d /drivers/net/wireless/mwl8k.c | |
| parent | 111b72a2f09e1958a6078a8b1c3feded6a3b450e (diff) | |
drivers/net/wireless/mwl8k.c: avoid use-after-free
Do not dereference p->station_id after kfree(cmd) because p
points into the cmd data structure.
Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index f221b95b90b3..83564d36e801 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -4250,9 +4250,11 @@ static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, p->amsdu_enabled = 0; rc = mwl8k_post_cmd(hw, &cmd->header); + if (!rc) + rc = p->station_id; kfree(cmd); - return rc ? rc : p->station_id; + return rc; } static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw, |