From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
I am getting following error.
" net/bridge/netfilter/ebtables.c:269 ebt_do_table()
error: potential null derefence 'cs'"
i = cs[sp].n; // If cs == Null then this will cause problem.
Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
---
net/bridge/netfilter/ebtables.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index f3fcbd9..9c0f177 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -209,8 +209,10 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
smp_processor_id());
if (private->chainstack)
cs = private->chainstack[smp_processor_id()];
- else
+ else {
cs = NULL;
+ goto out;
+ }
chaininfo = private->hook_entry[hook];
nentries = private->hook_entry[hook]->nentries;
point = (struct ebt_entry *)(private->hook_entry[hook]->data);
@@ -313,6 +315,7 @@ letscontinue:
read_unlock_bh(&table->lock);
return NF_ACCEPT;
}
+out:
read_unlock_bh(&table->lock);
return NF_DROP;
}
--
1.7.4.4
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