EXPLOIT/ALERT Back to feed

Linux vulnerability

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.

Published 25 Sep 2026Updated 2 Oct 20263 sources
CVSS 5.5
Overview Sources History

What happened

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.

Affected versions

Linux: d54730b50bae1f3119bd686d551d66f0fcc387ca through before e42cede6f90177f4f92f80d3de18f628e61d2087 (git); d54730b50bae1f3119bd686d551d66f0fcc387ca through before 641f814965d733936ca3618d4d5a12a8fa9be00e (git); d54730b50bae1f3119bd686d551d66f0fcc387ca through before 61e655391cb19c31f94ecd4354f624c81ce4cf75 (git); 6.4 Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.

CorrectionsReport an issue