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CVE-2026-100074

medium

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf_refcount field as unique BPF_REFCOUNT is not marked as a unique field, whil…

Vendor / product: Linux — linux kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf_refcount field as unique BPF_REFCOUNT is not marked as a unique field, while it should be. Fix this oversight.

CVSS
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-25 14:17
Modified: 2026-10-21 13:18
NVD status: Undergoing Analysis
Last synced 2 days ago
Verified against the source API 2026-10-27 06:55 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥6.4 <6.18.52, ≥6.19 <7.2.6

Weakness classification (CWE)

NVD-CWE-noinfo

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/61e655391cb19c31f94ecd4354f624c81ce4cf75
Patch / mitigation: https://git.kernel.org/stable/c/641f814965d733936ca3618d4d5a12a8fa9be00e
Patch / mitigation: https://git.kernel.org/stable/c/e42cede6f90177f4f92f80d3de18f628e61d2087

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:55 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

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