CVE-2026-64519 Details
Description
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.
A vulnerability in the Linux kernel's NFS server (NFSD) has been addressed, which caused an infinite loop during the revocation of layout states. This issue arose because the function 'find_one_sb_stid()' ignored state IDs (stids) with a non-zero status. Consequently, the 'SC_TYPE_LAYOUT' case in 'nfsd4_revoke_states()' failed to update the status before invoking 'nfsd4_close_layout()', leading to a perpetual retry loop that repeatedly encountered the same layout state ID, causing the revocation process to hang indefinitely.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
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Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
No affected product data is available for this CVE.
Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 25, 2026 | New CVE Received | kernel.org |