CVE-2026-64185
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
19/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
sysfs: don&#39;t remove existing directory on update failure<br />
<br />
When sysfs_update_group() is called for a named group and create_files()<br />
fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on<br />
the group directory. In the update path, kn was obtained via<br />
kernfs_find_and_get() and refers to a directory that already existed<br />
before this call. Removing it silently destroys a sysfs group that the<br />
caller did not create.<br />
<br />
Only remove the directory if we created it ourselves. On update failure<br />
the directory remains as it is left empty by remove_files() inside<br />
create_files(), but can be repopulated by a retry.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a
- https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3
- https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472
- https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736
- https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418
- https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f
- https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d
- https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c



