CVE-2026-46288
Severity CVSS v4.0:
Pending analysis
Type:
CWE-416
Use After Free
Publication date:
08/06/2026
Last modified:
08/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
of: unittest: fix use-after-free in of_unittest_changeset()<br />
<br />
The variable &#39;parent&#39; is assigned the value of &#39;nchangeset&#39; earlier in the<br />
function, meaning both point to the same struct device_node. The call to<br />
of_node_put(nchangeset) can decrement the reference count to zero and<br />
free the node if there are no other holders. After that, the code still<br />
uses &#39;parent&#39; to check for the presence of a property and to read a<br />
string property, leading to a use-after-free.<br />
<br />
Fix this by moving the of_node_put() call after the last access to<br />
&#39;parent&#39;, avoiding the UAF.
Impact
Base Score 3.x
8.40
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.12 (including) | 6.12.86 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.13 (including) | 6.18.27 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.19 (including) | 7.0.4 (excluding) |
To consult the complete list of CPE names with products and versions, see this page