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authorPablo Neira Ayuso <pablo@netfilter.org>2020-03-27 17:43:04 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2020-03-30 02:05:37 +0200
commit24791b9aa1ab09818617ff384876930e09ada0a3 (patch)
tree0ef5fe62c443a7e267b8542fb3441f80c8f188c4 /net/netfilter
parent7c6b4121627aeaa79536fbb900feafec740410d3 (diff)
downloadlinux-24791b9aa1ab09818617ff384876930e09ada0a3.tar.bz2
netfilter: nft_set_bitmap: initialize set element extension in lookups
Otherwise, nft_lookup might dereference an uninitialized pointer to the element extension. Fixes: 665153ff5752 ("netfilter: nf_tables: add bitmap set type") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/nft_set_bitmap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/netfilter/nft_set_bitmap.c b/net/netfilter/nft_set_bitmap.c
index 1cb2e67e6e03..6829a497b4cc 100644
--- a/net/netfilter/nft_set_bitmap.c
+++ b/net/netfilter/nft_set_bitmap.c
@@ -81,6 +81,7 @@ static bool nft_bitmap_lookup(const struct net *net, const struct nft_set *set,
u32 idx, off;
nft_bitmap_location(set, key, &idx, &off);
+ *ext = NULL;
return nft_bitmap_active(priv->bitmap, idx, off, genmask);
}