From: Amitkumar Karwar Date: Tue, 26 May 2015 13:34:28 +0000 (-0700) Subject: mwifiex: fix a possible double free issue X-Git-Tag: firefly_0821_release~176^2~1587^2~139^2~6 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0769b27739ee420a391ee66a431c1474370aec6b;p=firefly-linux-kernel-4.4.55.git mwifiex: fix a possible double free issue As drv_info_dump pointer doesn't get reset, we may end up freeing the allocated memory twice. Signed-off-by: Amitkumar Karwar Signed-off-by: Cathy Luo Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c index fdf38d06a0aa..df7fdc09d38c 100644 --- a/drivers/net/wireless/mwifiex/init.c +++ b/drivers/net/wireless/mwifiex/init.c @@ -435,6 +435,7 @@ mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter) if (adapter->drv_info_dump) { vfree(adapter->drv_info_dump); + adapter->drv_info_dump = NULL; adapter->drv_info_size = 0; } diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index 138c1cccf7d3..cb0097890d3f 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -886,6 +886,7 @@ void mwifiex_dump_drv_info(struct mwifiex_adapter *adapter) if (adapter->drv_info_dump) { vfree(adapter->drv_info_dump); + adapter->drv_info_dump = NULL; adapter->drv_info_size = 0; }