CVE-2026-64158: netfs: Fix write streaming disablement if fd open O_RDWR
Published Jul 19, 2026
·Updated
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Affected Software
8 affected components
Linux Kernel
Linux Linux kernel>=6.8<6.12.92
Linux Linux kernel>=6.13<6.18.34
Linux Linux kernel>=6.19<7.0.11
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Linux Linux kernel=7.1-rc4
Remediation
Event History
Jul 19, 2026
CVE Published
via MITRE·03:40 PM
Rejected
via MITRE·03:40 PM
Data Sourced
via NVD·04:17 PM
Description
Aug 19, 2026
Rejected
via MITRE·06:58 AM
Frequently Asked Questions
1
What is the severity of CVE-2026-64158?
CVE-2026-64158 has a severity rating of 16.
2
How do I fix CVE-2026-64158?
To remediate CVE-2026-64158, ensure that your system is updated to the latest version of the Linux kernel where this vulnerability has been resolved.
3
What component is affected by CVE-2026-64158?
CVE-2026-64158 affects the netfs component within the Linux kernel.
4
What issue does CVE-2026-64158 address?
CVE-2026-64158 addresses the improper handling of write streaming in netfs when a file descriptor is opened with O_RDWR.
5
When was CVE-2026-64158 made public?
CVE-2026-64158 was published on July 19, 2026.