parent a391d495f6082f6348b9074214e81c7e2dc1151c (v2.6.37-rc1-184-ga391d49)
commit 6e97eb121bc8e39c651645c3d937f468d2b3e7fe
Author: Jan Engelhardt <jengelh@xxxxxxxxxx>
Date: Sat Nov 6 21:19:16 2010 +0100
netfilter: nfnetlink: guard against undefined entries
Check for empty entries in struct nfnl_callback[] to avoid potential
NULL deference. (Because I have run into one during development.)
Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxx>
---
net/netfilter/nfnetlink.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index b4a4532..7012882 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -152,7 +152,7 @@ replay:
}
nc = nfnetlink_find_client(type, ss);
- if (!nc)
+ if (nc == NULL || nc->call == NULL)
return -EINVAL;
{
--
# Created with git-export-patch
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