CVE-2026-64221 Details
Description
In the Linux kernel, the following vulnerability has been resolved: spi: ti-qspi: fix use-after-free after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to clear the DMA channel pointer also if buffer allocation fails to avoid passing a pointer to the released channel to the DMA engine (or trying to free the channel a second time on late probe errors or driver unbind). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.
A use-after-free vulnerability has been identified in the Linux kernel's TI-QSPI SPI driver. This issue arises when the driver, during the probing phase, fails to properly manage the DMA channel pointer after a buffer allocation error. As a result, a pointer to a released DMA channel can be incorrectly passed to the DMA engine, or the channel may be freed a second time in response to late probe errors or driver unbinding. The vulnerability is present in the Linux kernel stable tree, specifically in versions prior to the latest commit that addresses this issue.
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
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138e | kernel.org | Patch |
| https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e | kernel.org | Patch |
| https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d | kernel.org | Patch |
| https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.12, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.142 >= 6.7, < 6.12.92 >= 6.13, < 6.18.34 >= 6.19, < 7.0.11 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 11, 2026 | Initial Analysis | [email protected] |
| Jul 27, 2026 | CVE Modified | kernel.org |
| Jul 24, 2026 | New CVE Received | kernel.org |