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| author | Thomas Haller <thaller@redhat.com> | 2023-09-20 16:26:07 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2023-11-03 12:23:37 +0100 |
| commit | 0232da0b12989cc1aa952c58b488e8b57c40de14 (patch) | |
| tree | 6bed50ca46febea4d1461d0fc4de6f8291d54e35 | |
| parent | e7361e9b7bc1b583692ea572a133d1c6e942b83f (diff) | |
netlink: handle invalid etype in set_make_key()
commit c4186c5376ee73efff005dbd23dd73a8e06e6ad8 upstream.
It's not clear to me, what ensures that the etype is always valid.
Handle a NULL.
Fixes: 6e48df5329ea ('src: add "typeof" build/parse/print support')
Signed-off-by: Thomas Haller <thaller@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | src/netlink.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/netlink.c b/src/netlink.c index a3407121..8d517c10 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -893,6 +893,8 @@ static struct expr *set_make_key(const struct nftnl_udata *attr) etype = nftnl_udata_get_u32(ud[NFTNL_UDATA_SET_TYPEOF_EXPR]); ops = expr_ops_by_type(etype); + if (!ops) + return NULL; expr = ops->parse_udata(ud[NFTNL_UDATA_SET_TYPEOF_DATA]); if (!expr) |