CVE-2026-64170
spi: qup: fix error pointer deref after DMA setup failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
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Affected Versions
Linux / Linux
612762e82ae6058d69b4ce734598491bf030afe7 < 0bb3bd442f0bdad3932739a61dd6c580c9c1955e 612762e82ae6058d69b4ce734598491bf030afe7 < d577c55d189e7ae150973058d13e299b6855633f 612762e82ae6058d69b4ce734598491bf030afe7 < 9e673affb92c29d9ba879bf4ea81c5e840166b56 612762e82ae6058d69b4ce734598491bf030afe7 < 45760b72e84c1a1498f1a8a9047184c85299da20 612762e82ae6058d69b4ce734598491bf030afe7 < 8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 612762e82ae6058d69b4ce734598491bf030afe7 < 4bb4764f2c51f03f657a28029eb0595d8223aab5 612762e82ae6058d69b4ce734598491bf030afe7 < 4f4051e9d644c371c50de4a042b85bba6727d5c3 612762e82ae6058d69b4ce734598491bf030afe7 < a7e8f3efd50a165ba0189f6dc57f7e51a7d149db
Linux / Linux
4.1
References
git.kernel.org: https://git.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955e git.kernel.org: https://git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f git.kernel.org: https://git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56 git.kernel.org: https://git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20 git.kernel.org: https://git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 git.kernel.org: https://git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5 git.kernel.org: https://git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3 git.kernel.org: https://git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149db