diff mbox series

[v3,13/19] multipath: fix max array size in print_cmd_valid

Message ID 1537571127-10143-14-git-send-email-bmarzins@redhat.com (mailing list archive)
State Not Applicable, archived
Delegated to: christophe varoqui
Headers show
Series Misc Multipath patches | expand

Commit Message

Benjamin Marzinski Sept. 21, 2018, 11:05 p.m. UTC 
The code is attempting to verify that 0 <= k < 3
However, sizeof(val) is 12, assuming 4 byte integers. The check needs to
take integer size into account. Found by coverity.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 multipath/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Martin Wilck Oct. 1, 2018, 9:35 p.m. UTC | #1 
On Fri, 2018-09-21 at 18:05 -0500, Benjamin Marzinski wrote:
> The code is attempting to verify that 0 <= k < 3
> However, sizeof(val) is 12, assuming 4 byte integers. The check needs
> to
> take integer size into account. Found by coverity.
> 
> Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>

Reviewed-by: Martin Wilck <mwilck@suse.com>

> ---
>  multipath/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/multipath/main.c b/multipath/main.c
> index fc5bf16..d5aad95 100644
> --- a/multipath/main.c
> +++ b/multipath/main.c
> @@ -482,7 +482,7 @@ static int print_cmd_valid(int k, const vector
> pathvec,
>  	struct timespec until;
>  	struct path *pp;
>  
> -	if (k < 0 || k >= sizeof(vals))
> +	if (k < 0 || k >= (sizeof(vals) / sizeof(int)))
>  		return 1;
>  
>  	if (k == 2) {
diff mbox series

Patch

diff --git a/multipath/main.c b/multipath/main.c
index fc5bf16..d5aad95 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -482,7 +482,7 @@  static int print_cmd_valid(int k, const vector pathvec,
 	struct timespec until;
 	struct path *pp;
 
-	if (k < 0 || k >= sizeof(vals))
+	if (k < 0 || k >= (sizeof(vals) / sizeof(int)))
 		return 1;
 
 	if (k == 2) {