CVE-2026-53296 Details
Description
In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free channels on probe error On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.
A vulnerability exists in the Linux kernel's handling of mailbox controller channels during the probe process. When a probe error occurs, the kernel now properly frees previously allocated channels, preventing resource leaks and potential use-after-free scenarios. This issue was addressed in the stable Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664 | kernel.org | Patch |
| https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b | kernel.org | Patch |
| https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64 | kernel.org | Patch |
| https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de | kernel.org | Patch |
| https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701 | kernel.org | Patch |
| https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365 | kernel.org | Patch |
| https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa | kernel.org | Patch |
| https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.4, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.141 >= 6.7, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 7.1 rc1 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 26, 2026 | New CVE Received | kernel.org |