[PATCH] wireless: airo: potential buffer overflow in sprintf()

[Dan Carpenter]

It looks like we wanted to print a maximum of BSSList_rid.ssidLen bytes
of the ssid, but we accidentally use "%*s" (width) instead of "%.*s"
(precision) so if the ssid doesn't have a NUL terminator this could lead
to an overflow.

Fixes: e174961ca1a0 ("net: convert print_mac to %pM")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
Static analsysis.  Not tested.

 drivers/net/wireless/cisco/airo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/cisco/airo.c 
b/drivers/net/wireless/cisco/airo.c
index 04dd7a936593..5512c7f73fce 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -5462,7 +5462,7 @@ static int proc_BSSList_open( struct inode *inode, struct 
file *file ) {
            we have to add a spin lock... */
        rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
        while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
-               ptr += sprintf(ptr, "%pM %*s rssi = %d",
+               ptr += sprintf(ptr, "%pM %.*s rssi = %d",
                               BSSList_rid.bssid,
                                (int)BSSList_rid.ssidLen,
                                BSSList_rid.ssid,
-- 
2.11.0