This is a note to let you know that I've just added the patch titled mwifiex: fix NULL pointer dereference during hidden SSID scan
to the 4.3-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mwifiex-fix-null-pointer-dereference-during-hidden-ssid-scan.patch and it can be found in the queue-4.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@vger.kernel.org> know about it. >From 17e524b1b60f4390d24a51d9524d1648cf5d1447 Mon Sep 17 00:00:00 2001 From: Aniket Nagarnaik <anik...@marvell.com> Date: Fri, 18 Sep 2015 06:32:09 -0700 Subject: mwifiex: fix NULL pointer dereference during hidden SSID scan From: Aniket Nagarnaik <anik...@marvell.com> commit 17e524b1b60f4390d24a51d9524d1648cf5d1447 upstream. This NULL pointer dereference is observed during suspend resume stress test. All pending commands are cancelled when system goes into suspend state. There a corner case in which host may receive response for last scan command after this and try to trigger extra active scan for hidden SSIDs. The issue is fixed by adding a NULL check to skip that extra scan. Fixes: 2375fa2b36feaf34 (mwifiex: fix unable to connect hidden SSID..) Signed-off-by: Aniket Nagarnaik <anik...@marvell.com> Signed-off-by: Amitkumar Karwar <akar...@marvell.com> Signed-off-by: Kalle Valo <kv...@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/net/wireless/mwifiex/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/mwifiex/scan.c +++ b/drivers/net/wireless/mwifiex/scan.c @@ -1889,7 +1889,7 @@ mwifiex_active_scan_req_for_passive_chan u8 id = 0; struct mwifiex_user_scan_cfg *user_scan_cfg; - if (adapter->active_scan_triggered) { + if (adapter->active_scan_triggered || !priv->scan_request) { adapter->active_scan_triggered = false; return 0; } Patches currently in stable-queue which might be from anik...@marvell.com are queue-4.3/mwifiex-fix-null-pointer-dereference-during-hidden-ssid-scan.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html