From: Pablo Neira Ayuso pablo@netfilter.org
mainline inclusion from mainline-v6.9-rc5 commit efefd4f00c967d00ad7abe092554ffbb70c1a793 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9L5O8 CVE: CVE-2024-27017
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Add missing decorator type to lookup expression and tighten WARN_ON_ONCE check in pipapo to spot earlier that this is unset.
Fixes: 29b359cf6d95 ("netfilter: nft_set_pipapo: walk over current view on netlink dump") Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org
Conflicts: net/netfilter/nft_set_pipapo.c [ Context conflicts. ] Signed-off-by: Wang Hai wanghai38@huawei.com --- net/netfilter/nft_lookup.c | 1 + net/netfilter/nft_set_pipapo.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c index 8bc008ff00cb..c2dd1d3ac328 100644 --- a/net/netfilter/nft_lookup.c +++ b/net/netfilter/nft_lookup.c @@ -206,6 +206,7 @@ static int nft_lookup_validate(const struct nft_ctx *ctx, return 0;
iter.genmask = nft_genmask_next(ctx->net); + iter.type = NFT_ITER_UPDATE; iter.skip = 0; iter.count = 0; iter.err = 0; diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index e083b1a0509a..9c311b6f37af 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -2022,7 +2022,8 @@ static void nft_pipapo_walk(const struct nft_ctx *ctx, struct nft_set *set, struct nft_pipapo_field *f; int i, r;
- WARN_ON_ONCE(iter->type == NFT_ITER_UNSPEC); + WARN_ON_ONCE(iter->type != NFT_ITER_READ && + iter->type != NFT_ITER_UPDATE);
rcu_read_lock(); if (iter->type == NFT_ITER_READ)