CVE-2026-64519
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix infinite loop in layout state revocation find_one_sb_stid() skips stids whose sc_status is non-zero, but the SC_TYPE_LAYOUT case in nfsd4_revoke_states() never sets sc_status before calling nfsd4_close_layout(). The retry loop therefore finds the same layout stid on every iteration, hanging the revoker indefinitely.
Affected versions
Linux kernel versions
6.9
and later are affected. Fixed in
6.12.92,
6.18.34,
7.0.11,
7.1
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-64519?
CVE-2026-64519 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.9 onward and has been patched in 6.12.92, 6.18.34, 7.0.11 and others. CVE-2026-64519 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-2026-64519?
Yes. CVE-2026-64519 has been patched. Fixed versions include 6.12.92, 6.18.34, 7.0.11 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-2026-64519 actively exploited?
No. CVE-2026-64519 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.