CVE-2026-64185
In the Linux kernel, the following vulnerability has been resolved: sysfs: don't remove existing directory on update failure When sysfs_update_group() is called for a named group and create_files() fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on the group directory. In the update path, kn was obtained via kernfs_find_and_get() and refers to a directory that already existed before this call. Removing it silently destroys a sysfs group that the caller did not create. Only remove the directory if we created it ourselves. On update failure the directory remains as it is left empty by remove_files() inside create_files(), but can be repopulated by a retry.
Affected versions
Linux kernel versions
4.19
and later are affected. Fixed in
5.10.258,
5.15.209,
6.1.175,
6.6.142,
6.12.92,
6.18.34,
7.0.11,
7.1
and their respective stable series.
References
8 totalFrequently asked questions
-
What is CVE-2026-64185?
CVE-2026-64185 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.19 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-64185 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-64185?
Yes — CVE-2026-64185 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-64185 actively exploited?
No — CVE-2026-64185 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.