CVE-2026-53031
In the Linux kernel, the following vulnerability has been resolved: bpf: Validate node_id in arena_alloc_pages() arena_alloc_pages() accepts a plain int node_id and forwards it through the entire allocation chain without any bounds checking. Validate node_id before passing it down the allocation chain in arena_alloc_pages().
Affected versions
Linux kernel versions
6.9
and later are affected. Fixed in
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-53031?
CVE-2026-53031 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.9 onward and has been patched in 6.12.91, 6.18.33, 7.0.10 and others. CVE-2026-53031 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-53031?
Yes — CVE-2026-53031 has been patched. Fixed versions include 6.12.91, 6.18.33, 7.0.10 and others. If you are running Linux kernel 6.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-53031 actively exploited?
No — CVE-2026-53031 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.