dmaengine: idxd: Fix memory leak when a wq is reset

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-31441
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 14:16:37 UTC
Updated2026-07-14 13:18:41 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix memory leak when a wq is reset idxd_wq_disable_cleanup() which is called from the reset path for a workqueue, sets the wq type to NONE, which for other parts of the driver mean that the wq is empty (all its resources were released). Only set the wq type to NONE after its resources are released.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.067930000 (date 2026-04-26)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658 git Not specified
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 54d77cc0c40ca2f894859dc7b3c52997574f1a2a git Not specified
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 39c1504e0e76bcfb93991fd94288a83e05d13b51 git Not specified
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 a9e7815d38629bcf59d3005001f1f315424a58de git Not specified
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 0c3d3ac57e3c52b570b8c695903306bff07e04c8 git Not specified
CNA Linux Linux affected da32b28c95a79e399e18c03f8178f41aec9c66e4 d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478 git Not specified
CNA Linux Linux affected 2a2df2bd10de44c3804661ed15157817c12d6291 git Not specified
CNA Linux Linux affected 5.7.10 5.8 semver Not specified
CNA Linux Linux affected 5.8 Not specified
CNA Linux Linux unaffected 5.8 semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.131 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.80 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.21 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.11 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0c3d3ac57e3c52b570b8c695903306bff07e04c8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a9e7815d38629bcf59d3005001f1f315424a58de 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/54d77cc0c40ca2f894859dc7b3c52997574f1a2a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/39c1504e0e76bcfb93991fd94288a83e05d13b51 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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