CVE-2026-64169

spi: ep93xx: fix error pointer deref after DMA setup failure

MEDIUM

5.5

CVSS Score

Published: July 19, 2026 at 03:40 PM UTC

Updated: August 13, 2026 at 03:47 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: spi: ep93xx: 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 on later 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.

Linux Kernel · Linux

95%

6.12 ≤ v < 6.12.926.12 ≤ v < 6.18.346.12 ≤ v < 7.0.116.12 ≤ v < 7.16.13 ≤ v < 6.18.346.19 ≤ v < 7.0.117.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4e79e7c2df6277ee1ad9364a231f6183da4492415

Vendor states this is fixed in 0e2189ab095e3657f37b8295f3f2bbcde0f27529 (fixed)

Vendor states this is fixed in 5e121a81667a83e9a01d62b429e340f5a4a84abc (fixed)

Vendor states this is fixed in 8e027db9fa310b1d5e7ad928510be800c4f004d9 (fixed)

Vendor states this is fixed in b6c0dabea07e25bd7db19a77ebfd0d02b9e2671a (fixed)

Vendor states this is fixed in 6.12 (unaffected)

Vendor states this is fixed in 6.12.92 (unaffected)

Vendor states this is fixed in 6.18.34 (unaffected)

Vendor states this is fixed in 7.0.11 (unaffected)

Vendor states this is fixed in 7.1 (unaffected)