can-bcm: fix minor heap overflow

On 64-bit platforms the ASCII representation of a pointer may be up to 17
bytes long. This patch increases the length of the buffer accordingly.

http://marc.info/?l=linux-netdev&m=128872251418192&w=2

Reported-by: Dan Rosenberg <[email protected]>
Signed-off-by: Oliver Hartkopp <[email protected]>
CC: Linus Torvalds <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/net/can/bcm.c b/net/can/bcm.c
index 08ffe9e4be20aa49ab2bba82c36c5e988a4880fd..6faa8256e10ca22d6fb0b2005d74c5c5580a404d 100644 (file)
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -125,7 +125,7 @@ struct bcm_sock {
        struct list_head tx_ops;
        unsigned long dropped_usr_msgs;
        struct proc_dir_entry *bcm_proc_read;
-       char procname [9]; /* pointer printed in ASCII with \0 */
+       char procname [20]; /* pointer printed in ASCII with \0 */
 };
 
 static inline struct bcm_sock *bcm_sk(const struct sock *sk)