Description
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 products
linux: linux kernel
References5
- git.kernel.org/stable/c/61e655391cb19c31f94ecd4354f624c81ce4cf75 Patch
- git.kernel.org/stable/c/641f814965d733936ca3618d4d5a12a8fa9be00e Patch
- git.kernel.org/stable/c/e42cede6f90177f4f92f80d3de18f628e61d2087 Patch
- git.kernel.org/stable/c/015f9fbcf3382c5eb563a157ee8cabb6fbfcfe5e
- git.kernel.org/stable/c/20b3c72c1b83054c568d2322a95e217fdc281bc3
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 9 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.