From: Amitkumar Karwar Date: Tue, 26 May 2015 13:34:28 +0000 (-0700) Subject: mwifiex: fix a possible double free issue X-Git-Tag: v4.2-rc1~130^2~139^2~6 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0769b27739ee420a391ee66a431c1474370aec6b;p=thirdparty%2Fkernel%2Flinux.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 fdf38d06a0aaa..df7fdc09d38c7 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 138c1cccf7d39..cb0097890d3fd 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; }