linux-stable/net/bpf
Stanislav Fomichev b0e6f769d0 bpf: Move skb->len == 0 checks into __bpf_redirect
[ Upstream commit 114039b342 ]

To avoid potentially breaking existing users.

Both mac/no-mac cases have to be amended; mac_header >= network_header
is not enough (verified with a new test, see next patch).

Fixes: fd18942244 ("bpf: Don't redirect packets with invalid pkt_len")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20221121180340.1983627-1-sdf@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:26:00 +01:00
..
Makefile bpf: Add dummy BPF STRUCT_OPS for test purpose 2021-11-01 14:10:00 -07:00
bpf_dummy_struct_ops.c bpf, x86: Generate trampolines from bpf_tramp_links 2022-05-10 17:50:40 -07:00
test_run.c bpf: Move skb->len == 0 checks into __bpf_redirect 2022-12-31 13:26:00 +01:00