[PATCH net-next] net: bridge: use vzalloc() instead of vmalloc() as counterstmp is not cleared before it is used in get_counters(). counterstmp might be leaked partially when it is sent to userland later on.

[PATCH net-next] net: bridge: use vzalloc() instead of vmalloc() as counterstmp is not cleared before it is used in get_counters(). counterstmp might be leaked partially when it is sent to userland later on.

[Loganaden Velvindron]

---
 net/bridge/netfilter/ebtables.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index f46ca41..26922e9 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -989,7 +989,7 @@ static int do_replace_finish(struct net *net, struct ebt_replace *repl,
 	   the check on the size is done later, when we have the lock */
 	if (repl->num_counters) {
 		unsigned long size = repl->num_counters * sizeof(*counterstmp);
-		counterstmp = vmalloc(size);
+		counterstmp = vzalloc(size);
 		if (!counterstmp)
 			return -ENOMEM;
 	}
@@ -1410,7 +1410,7 @@ static int copy_counters_to_user(struct ebt_table *t,
 		return -EINVAL;
 	}
 
-	counterstmp = vmalloc(nentries * sizeof(*counterstmp));
+	counterstmp = vzalloc(nentries * sizeof(*counterstmp));
 	if (!counterstmp)
 		return -ENOMEM;
 
-- 
2.6.1

Re: [PATCH net-next] net: bridge: use vzalloc() instead of vmalloc() as counterstmp is not cleared before it is used in get_counters(). counterstmp might be leaked partially when it is sent to userland later on.

[Sergei Shtylyov]

Hello.

    Your subject is too long, it should have been placed in the changelog 
partially. You you didn't sign off on the patch, so it can't applied.

MBR, Sergei

Re: [PATCH net-next] net: bridge: use vzalloc() instead of vmalloc() as counterstmp is not cleared before it is used in get_counters(). counterstmp might be leaked partially when it is sent to userland later on.

[Loganaden Velvindron]

On Wed, Oct 28, 2015 at 09:10:20PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
>    Your subject is too long, it should have been placed in the changelog
> partially. You you didn't sign off on the patch, so it can't applied.
> 
> MBR, Sergei

Thank you. Please reject this patch. I re-sent a proper one in another mail.
> 
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Re: [PATCH net-next] net: bridge: use vzalloc() instead of vmalloc() as counterstmp is not cleared before it is used in get_counters(). counterstmp might be leaked partially when it is sent to userland later on.

[Loganaden Velvindron]

Please reject this patch. I sent a proper one with the sign-on later on.