CVE-2026-64170 is a vulnerability in Linux Kernel
Published on July 19, 2026
spi: qup: fix error pointer deref after DMA setup failure
In the Linux kernel, the following vulnerability has been resolved:
spi: qup: fix error pointer deref after DMA setup failure
The driver falls back to PIO mode if DMA setup fails during probe.
Make sure to the clear the DMA channel pointers on setup failure to
avoid dereferencing an error pointer (or attempting to release a channel
a second time) on later probe errors or driver unbind.
This issue was flagged by Sashiko when reviewing a devres allocation
conversion patch.
Products Associated with CVE-2026-64170
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Affected Versions
Linux:- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 0bb3bd442f0bdad3932739a61dd6c580c9c1955e is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below d577c55d189e7ae150973058d13e299b6855633f is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 9e673affb92c29d9ba879bf4ea81c5e840166b56 is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 45760b72e84c1a1498f1a8a9047184c85299da20 is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 4bb4764f2c51f03f657a28029eb0595d8223aab5 is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below 4f4051e9d644c371c50de4a042b85bba6727d5c3 is affected.
- Version 612762e82ae6058d69b4ce734598491bf030afe7 and below a7e8f3efd50a165ba0189f6dc57f7e51a7d149db is affected.
- Version 4.1 is affected.
- Before 4.1 is unaffected.
- Version 5.10.259, <= 5.10.* is unaffected.
- Version 5.15.210, <= 5.15.* is unaffected.
- Version 6.1.176, <= 6.1.* is unaffected.
- Version 6.6.142, <= 6.6.* is unaffected.
- Version 6.12.92, <= 6.12.* is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.