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Copyright ยฉ 2026 HOL DAO LLC. All rights reserved.

Back to active CVEs
Unknown severity ยท Source severity not reportedCVE-2026-53074

bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skbCVE-2026-53074

Answer in brief

CVE-2026-53074 records a Unknown severity vulnerability in bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 24, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Jun 24, 2026Material review Nov 6, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 6, 2026
References
8 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <7254267799d083280c0e53effc101a33add95f7b || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <6a9f38d5ff11e00bc54baab752642978805e81eb || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <e6aa481f21fc7a41ed344767ea25aae9d03fae71 || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <0a04db240effd85773f66244645a28cedddb72d2 || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <1f882c492d46f90bdb36f4936876c88c28dab21c || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <8042240412de3222d27b31e89d29336961cad9e4 || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <6def5fe753cbe5b279ee5fd10327b2611cbddaca || >=fa5cb548ced61b9d3095f32f8a7e427a248c65ee <12bec2bd4b76d81c5d3996bd14ec1b7f4d9837477254267799d083280c0e53effc101a33add95f7b, 6a9f38d5ff11e00bc54baab752642978805e81eb, e6aa481f21fc7a41ed344767ea25aae9d03fae71, 0a04db240effd85773f66244645a28cedddb72d2, 1f882c492d46f90bdb36f4936876c88c28dab21c, 8042240412de3222d27b31e89d29336961cad9e4, 6def5fe753cbe5b279ee5fd10327b2611cbddaca, 12bec2bd4b76d81c5d3996bd14ec1b7f4d983747
Linux/Linuxgeneric5.9Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 7254267799d083280c0e53effc101a33add95f7b if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 24, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.