CVE-2026-64170
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 19, 2026
First seenJul 19, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.10.259, 5.15.210, 6.1.176, 6.6.142, 6.12.92, 6.18.34, 7.0.11 or later
Patches
- git.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955e
- git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20
- git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5
- git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3
- git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238
- git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56
- git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149db
- git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.1 ≤ v < 5.10.259, 5.11 ≤ v < 5.15.210, 5.16 ≤ v < 6.1.176, 6.2 ≤ v < 6.6.142, 6.7 ≤ v < 6.12.92, 6.13 ≤ v < 6.18.34, 6.19 ≤ v < 7.0.11, 7.1 | 5.10.259, 5.15.210, 6.1.176, 6.6.142, 6.12.92, 6.18.34, 7.0.11 |
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