Medium severity5.5NVD Advisory· Published Jul 19, 2026· Updated Aug 13, 2026
CVE-2026-64170
CVE-2026-64170
Description
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.
Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.1,<5.10.259
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955envdPatch
- git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20nvdPatch
- git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5nvdPatch
- git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3nvdPatch
- git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238nvdPatch
- git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56nvdPatch
- git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149dbnvdPatch
- git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633fnvdPatch
News mentions
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