CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2026-53074
Medium (5.5) in linux linux kernel. EPSS 0.1% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2
- https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747
- https://git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c
- https://git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb
- https://git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca