CVE-2026-53117 Details
Description
In the Linux kernel, the following vulnerability has been resolved: s390/cio: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]
A use-after-free vulnerability has been addressed in the Linux kernel's handling of driver overrides for the s390/cio bus. The issue arose because the bus's match() callback was invoked without the device lock, allowing unsynchronized access to the driver_override field. This could lead to a use-after-free condition. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been fixed.
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/106d594711e97762788046c5bbb94f580abc4bf4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c4295487124f461405e1ef64dfa8c4ab0cb7ebcf | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.3, < 6.6.141 >= 6.7, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | New CVE Received | kernel.org |