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Findings

CVE-2022-2905

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map.

Published Sep 9, 2022 · updated Oct 14, 2026 · linux linux kernel

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 9, 2022 · NIST NVD

    Detected

    An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

  2. Oct 14, 2026 · NIST NVD

    Updated

    An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Affected

  • cpe debian/debian linux10.0
  • cpe linux/linux kernelversion unspecified
  • cpe linux/linux kernel6.0
  • cpe redhat/enterprise linux8.0

Sources

  • CVE.orgVulnerability recordCVE-2022-2905

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-2905

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2022-2905

    An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

    nvd.nist.gov

References