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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00164.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
612762e82ae6058d69b4ce734598491bf030afe7 affected < 0bb3bd442f0bdad3932739a61dd6c580c9c1955e
612762e82ae6058d69b4ce734598491bf030afe7 affected < d577c55d189e7ae150973058d13e299b6855633f
612762e82ae6058d69b4ce734598491bf030afe7 affected < 9e673affb92c29d9ba879bf4ea81c5e840166b56
612762e82ae6058d69b4ce734598491bf030afe7 affected < 45760b72e84c1a1498f1a8a9047184c85299da20
612762e82ae6058d69b4ce734598491bf030afe7 affected < 8f9b61d255b1e989b8913b06c8ebe0aba5e1b238
612762e82ae6058d69b4ce734598491bf030afe7 affected < 4bb4764f2c51f03f657a28029eb0595d8223aab5
612762e82ae6058d69b4ce734598491bf030afe7 affected < 4f4051e9d644c371c50de4a042b85bba6727d5c3
612762e82ae6058d69b4ce734598491bf030afe7 affected < a7e8f3efd50a165ba0189f6dc57f7e51a7d149db
Linux Linux affected
Version Status Constraints
4.1 affected —
0 unaffected < 4.1
5.10.259 unaffected ≤ 5.10.*
5.15.210 unaffected ≤ 5.15.*
6.1.176 unaffected ≤ 6.1.*
6.6.142 unaffected ≤ 6.6.*
6.12.92 unaffected ≤ 6.12.*
6.18.34 unaffected ≤ 6.18.*
7.0.11 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0bb3bd442f0bdad3932739a61dd6c580c9c1955e cve-icon
https://git.kernel.org/stable/c/45760b72e84c1a1498f1a8a9047184c85299da20 cve-icon
https://git.kernel.org/stable/c/4bb4764f2c51f03f657a28029eb0595d8223aab5 cve-icon
https://git.kernel.org/stable/c/4f4051e9d644c371c50de4a042b85bba6727d5c3 cve-icon
https://git.kernel.org/stable/c/8f9b61d255b1e989b8913b06c8ebe0aba5e1b238 cve-icon
https://git.kernel.org/stable/c/9e673affb92c29d9ba879bf4ea81c5e840166b56 cve-icon
https://git.kernel.org/stable/c/a7e8f3efd50a165ba0189f6dc57f7e51a7d149db cve-icon
https://git.kernel.org/stable/c/d577c55d189e7ae150973058d13e299b6855633f cve-icon
https://lore.kernel.org/linux-cve-announce/2026071936-CVE-2026-64170-0eeb@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-64170 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-64170 cve-icon
History

Mon, 20 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Sun, 19 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
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.
Title spi: qup: fix error pointer deref after DMA setup failure
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-19T15:40:54.999Z

Reserved: 2026-07-19T07:54:57.039Z

Link: CVE-2026-64170

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-19T00:00:00Z

Links: CVE-2026-64170 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses