High 8.4Published Jun 8, 2026

CVE-2026-46288of: unittest: fix use-after-free in of_unittest_changeset()

Updated under an hour ago (Oct 26, 2026, 10:50 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After that, the code still uses 'parent' to check for the presence of a property and to read a string property, leading to a use-after-free. Fix this by moving the of_node_put() call after the last access to 'parent', avoiding the UAF.

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1c668ea65506e67ce2eae07b69bb09fcdd86e309 before 37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1; from 1c668ea65506e67ce2eae07b69bb09fcdd86e309 before 7f0f0926f3010b10cff5e93446258f971e42f2fd; from 1c668ea65506e67ce2eae07b69bb09fcdd86e309 before 6fdad20b7975bdc32e85b45f8f7c640f6687b81f; from 1c668ea65506e67ce2eae07b69bb09fcdd86e309 before faecdd423c27f0d6090156a435ba9dbbac0eaddb	CNA record
linux linux_kernel linux:linux_kernel	from 6.12 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4	NVD

References

References

https://git.kernel.org/stable/c/37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1	patch
https://git.kernel.org/stable/c/7f0f0926f3010b10cff5e93446258f971e42f2fd	patch
https://git.kernel.org/stable/c/6fdad20b7975bdc32e85b45f8f7c640f6687b81f	patch
https://git.kernel.org/stable/c/faecdd423c27f0d6090156a435ba9dbbac0eaddb	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.