CVE-2026-64158 Details
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
A vulnerability in the Linux kernel's netfs component has been addressed. The issue involved the improper management of 'write streaming' when a file descriptor is opened with read and write permissions. This streaming, which caches dirty data to prevent unnecessary reads before overwriting, was incorrectly disabled for O_RDWR file descriptors. The netfs now automatically manages read gaps, making the flush requirement obsolete. The fix removes the O_RDWR check, restoring proper streaming functionality. This vulnerability had caused issues with the generic/522 xfstest, which have now been resolved.
Users can apply the latest patches available in the Linux kernel stable tree to address this vulnerability.
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.
References to Advisories, Solutions, and Tools
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No references are available for this CVE.
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
No affected product data is available for this CVE.
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 19, 2026 | CVE Rejected | kernel.org |
| Aug 19, 2026 | CVE Modified | kernel.org |
| Aug 17, 2026 | Initial Analysis | [email protected] |
| Jul 20, 2026 | CVE Modified | kernel.org |
| Jul 19, 2026 | New CVE Received | kernel.org |