CVE-2026-64221
spi: ti-qspi: fix use-after-free after DMA setup failure
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6
- https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6
- https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d
- https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae
- https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e
References (8)
CVSS
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