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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2nvdPatch
- git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747nvdPatch
- git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21cnvdPatch
- git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81ebnvdPatch
- git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddacanvdPatch
- git.kernel.org/stable/c/7254267799d083280c0e53effc101a33add95f7bnvdPatch
- git.kernel.org/stable/c/8042240412de3222d27b31e89d29336961cad9e4nvdPatch
- git.kernel.org/stable/c/e6aa481f21fc7a41ed344767ea25aae9d03fae71nvdPatch
News mentions
0No linked articles in our index yet.