CVE-2026-64040
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
30/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
cachefiles: Fix error return when vfs_mkdir() fails<br />
<br />
When vfs_mkdir() fails, the error code is not extracted from the<br />
returned error pointer. This causes mkdir_error to be reached with<br />
ret=0, which leads to returning ERR_PTR(0) (NULL) instead of a<br />
proper error pointer.<br />
<br />
Fix this by extracting the error code from the error pointer when<br />
vfs_mkdir() fails.