diff options
| author | Florian Westphal <fw@strlen.de> | 2026-02-11 12:53:09 +0100 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2026-02-17 15:04:20 +0100 |
| commit | a6d28eb8efe96b3e35c92efdf1bfacb0cccf541f (patch) | |
| tree | f19d178c2434d859ca2b8ac065c9d6a1be2637b5 /net/netfilter | |
| parent | 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc (diff) | |
netfilter: nf_conntrack_h323: don't pass uninitialised l3num value
Mihail Milev reports: Error: UNINIT (CWE-457):
net/netfilter/nf_conntrack_h323_main.c:1189:2: var_decl:
Declaring variable "tuple" without initializer.
net/netfilter/nf_conntrack_h323_main.c:1197:2:
uninit_use_in_call: Using uninitialized value "tuple.src.l3num" when calling "__nf_ct_expect_find".
net/netfilter/nf_conntrack_expect.c:142:2:
read_value: Reading value "tuple->src.l3num" when calling "nf_ct_expect_dst_hash".
1195| tuple.dst.protonum = IPPROTO_TCP;
1196|
1197|-> exp = __nf_ct_expect_find(net, nf_ct_zone(ct), &tuple);
1198| if (exp && exp->master == ct)
1199| return exp;
Switch this to a C99 initialiser and set the l3num value.
Fixes: f587de0e2feb ("[NETFILTER]: nf_conntrack/nf_nat: add H.323 helper port")
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_conntrack_h323_main.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c index 17f1f453d481..a2a0e22ccee1 100644 --- a/net/netfilter/nf_conntrack_h323_main.c +++ b/net/netfilter/nf_conntrack_h323_main.c @@ -1187,13 +1187,13 @@ static struct nf_conntrack_expect *find_expect(struct nf_conn *ct, { struct net *net = nf_ct_net(ct); struct nf_conntrack_expect *exp; - struct nf_conntrack_tuple tuple; + struct nf_conntrack_tuple tuple = { + .src.l3num = nf_ct_l3num(ct), + .dst.protonum = IPPROTO_TCP, + .dst.u.tcp.port = port, + }; - memset(&tuple.src.u3, 0, sizeof(tuple.src.u3)); - tuple.src.u.tcp.port = 0; memcpy(&tuple.dst.u3, addr, sizeof(tuple.dst.u3)); - tuple.dst.u.tcp.port = port; - tuple.dst.protonum = IPPROTO_TCP; exp = __nf_ct_expect_find(net, nf_ct_zone(ct), &tuple); if (exp && exp->master == ct) |