If the attribute is not sent, eg. old libnftnl binary, then
tb[NFTA_OSF_TTL] is NULL and kernel crashes from the _init path.
Fixes: a218dc82f0b5 ("netfilter: nft_osf: Add ttl option support")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nft_osf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c
index ca5e5d8c5ef8..b13618c764ec 100644
--- a/net/netfilter/nft_osf.c
+++ b/net/netfilter/nft_osf.c
@@ -50,7 +50,7 @@ static int nft_osf_init(const struct nft_ctx *ctx,
int err;
u8 ttl;
- if (nla_get_u8(tb[NFTA_OSF_TTL])) {
+ if (tb[NFTA_OSF_TTL]) {
ttl = nla_get_u8(tb[NFTA_OSF_TTL]);
if (ttl > 2)
return -EINVAL;
--
2.11.0
