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mwifiex: fix unbalanced locking in mwifiex_process_country_ie()

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commit 65b1aae0d9d5962faccc06bdb8e91a2a0b09451c upstream.

We called rcu_read_lock(), so we need to call rcu_read_unlock() before
we return.

Fixes: 3d94a4a8373b ("mwifiex: fix possible heap overflow in mwifiex_process_country_ie()")
Cc: stable@vger.kernel.org
Cc: huangwen <huangwenabc@gmail.com>
Cc: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Brian Norris 2020-01-06 14:42:12 -08:00 committed by Greg Kroah-Hartman
parent d2cf229797
commit 6a7ad15be9
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
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@ -274,6 +274,7 @@ static int mwifiex_process_country_ie(struct mwifiex_private *priv,
if (country_ie_len >
(IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) {
rcu_read_unlock();
mwifiex_dbg(priv->adapter, ERROR,
"11D: country_ie_len overflow!, deauth AP\n");
return -EINVAL;