bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb

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Summary

CVECVE-2026-53074
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-24 17:17:21 UTC
Updated2026-06-24 17:17:21 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001640000 probability, percentile 0.059630000 (date 2026-06-25)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 7254267799d083280c0e53effc101a33add95f7b git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 6a9f38d5ff11e00bc54baab752642978805e81eb git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee e6aa481f21fc7a41ed344767ea25aae9d03fae71 git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 0a04db240effd85773f66244645a28cedddb72d2 git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 1f882c492d46f90bdb36f4936876c88c28dab21c git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 8042240412de3222d27b31e89d29336961cad9e4 git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 6def5fe753cbe5b279ee5fd10327b2611cbddaca git Not specified
CNA Linux Linux affected fa5cb548ced61b9d3095f32f8a7e427a248c65ee 12bec2bd4b76d81c5d3996bd14ec1b7f4d983747 git Not specified
CNA Linux Linux affected 5.9 Not specified
CNA Linux Linux unaffected 5.9 semver Not specified
CNA Linux Linux unaffected 5.10.258 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.209 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.175 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.141 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.91 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8042240412de3222d27b31e89d29336961cad9e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e6aa481f21fc7a41ed344767ea25aae9d03fae71 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7254267799d083280c0e53effc101a33add95f7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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