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| author | Florian Westphal <fw@strlen.de> | 2023-09-29 10:42:10 +0200 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2023-10-04 14:12:01 +0200 |
| commit | af84f9e447a65b4b9f79e7e5d69e19039b431c56 (patch) | |
| tree | be8ad3a2ab4243a2ab132af9c63bd4eddfa749f4 /include/linux/netfilter | |
| parent | 51e7a66666e0ca9642c59464ef8359f0ac604d41 (diff) | |
netfilter: nft_payload: rebuild vlan header on h_proto access
nft can perform merging of adjacent payload requests.
This means that:
ether saddr 00:11 ... ether type 8021ad ...
is a single payload expression, for 8 bytes, starting at the
ethernet source offset.
Check that offset+length is fully within the source/destination mac
addersses.
This bug prevents 'ether type' from matching the correct h_proto in case
vlan tag got stripped.
Fixes: de6843be3082 ("netfilter: nft_payload: rebuild vlan header when needed")
Reported-by: David Ward <david.ward@ll.mit.edu>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'include/linux/netfilter')
0 files changed, 0 insertions, 0 deletions