CVE-2026-53074
Description
In the Linux kernel, the following vulnerability has been resolved:
bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb
bpf_prog_test_run_skb() calls eth_type_trans() first and then uses
skb->protocol to initialize sk family and address fields for the test
run.
For IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb)
even when the provided test input only contains an Ethernet header.
Reject the input earlier if the Ethernet frame carries IPv4/IPv6
EtherType but the L3 header is too short.
Fold the IPv4/IPv6 header length checks into the existing protocol
switch and return -EINVAL before accessing the network headers.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 7254267799d083280c0e53effc101a33add95f7b, fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 6a9f38d5ff11e00bc54baab752642978805e81eb, fa5cb548ced61b9d3095f32f8a7e427a248c65ee < e6aa481f21fc7a41ed344767ea25aae9d03fae71, fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 0a04db240effd85773f66244645a28cedddb72d2 … |
| Linux | Linux | — | 5.9, 0 < 5.9, 5.10.258 ≤ 5.10.*, 5.15.209 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/7254267799d083280c0e53effc101a33add95f7b
- https://git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb
- https://git.kernel.org/stable/c/e6aa481f21fc7a41ed344767ea25aae9d03fae71
- https://git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2
- https://git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c
- https://git.kernel.org/stable/c/8042240412de3222d27b31e89d29336961cad9e4
- https://git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca
- https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747