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nftables
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File _service:tar_scm:backport-netlink-handle-invalid-etype-in-set_make_key.patch of Package nftables
From c4186c5376ee73efff005dbd23dd73a8e06e6ad8 Mon Sep 17 00:00:00 2001 From: Thomas Haller <thaller@redhat.com> Date: Wed, 20 Sep 2023 16:26:07 +0200 Subject: [PATCH] netlink: handle invalid etype in set_make_key() 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> --- src/netlink.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/netlink.c b/src/netlink.c index 2489e986..70ebf382 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -896,6 +896,8 @@ 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) -- 2.33.0
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