diff mbox series

[2/2] staging: rtl8192e: Fix compiler warning truncated writing of iwe.u.name

Message ID 2caafb8628880570725385e87150c47689474fc4.1695054044.git.philipp.g.hortmann@gmail.com
State New
Headers
Series staging: rtl8192e: Fix alignment of structs and truncated writing |

Commit Message

Philipp Hortmann Sept. 18, 2023, 4:43 p.m. UTC 
  iwe.u.name and proto_name have both 16 bytes of space. But when writing
to iwe.u.name the first 10 bytes are used by the fixed string
"IEEE802.11". Evaluating the code shows that only the following strings
can occur in proto_name: "N-24G", "g", "b", "bg". Therefore it is
sufficient to shorten proto_name to 6 bytes.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309171733.Gl96cmYd-lkp@intel.com/
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
---
 drivers/staging/rtl8192e/rtllib_wx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c
index e9469bfef3dd..a37250de7ba3 100644
--- a/drivers/staging/rtl8192e/rtllib_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_wx.c
@@ -29,7 +29,7 @@  static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 					   struct iw_request_info *info)
 {
 	char custom[MAX_CUSTOM_LEN];
-	char proto_name[IFNAMSIZ];
+	char proto_name[6];
 	char *pname = proto_name;
 	char *p;
 	struct iw_event iwe;