CVE-2026-64192: bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM is uninitialized

CSIRTS triage

What: The BPF subsystem rejects the creation of BPF_MAP_TYPE_INODE_STORAGE if the BPF LSM is uninitialized.
Who is affected: Deployments using the BPF subsystem are affected if they attempt to create this type of map without proper initialization.
Urgency: Remediation is urgent due to the high severity and potential for exploitation.
Action: Ensure BPF LSM is properly initialized or update to the patched version.

AI-assisted analysis generated from the source advisory — verify against the original.

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EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-641920.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-64192	coverage & exploitation status	NVD · CVE.org

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