4.3-stable review patch. If anyone has any objections, please let me know.
------------------ From: Aniket Nagarnaik <[email protected]> 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 <[email protected]> Signed-off-by: Amitkumar Karwar <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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; } -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
