Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.12, < 5.10.258 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138ePatch
- https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040ePatch
- https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6Patch
- https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6Patch
- https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672dPatch
- https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860Patch
- https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19Patch
- https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052aePatch
FAQ
What is CVE-2026-64221?
CVE-2026-64221 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...
How severe is CVE-2026-64221?
CVE-2026-64221 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64221?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.