CVE-2026-64221high

spi: ti-qspi: fix use-after-free after DMA setup failure

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.1%

exploitation probability

0.1%top 97% of all CVEs

observed exploitation

nono source reports it

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138e https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6 https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6 https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860 https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19 https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae