Medium 5.5Published Apr 22, 2026

CVE-2026-31441dmaengine: idxd: Fix memory leak when a wq is reset

Updated under an hour ago (Oct 26, 2026, 11:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In 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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from da32b28c95a79e399e18c03f8178f41aec9c66e4 before a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658; from da32b28c95a79e399e18c03f8178f41aec9c66e4 before 54d77cc0c40ca2f894859dc7b3c52997574f1a2a; from da32b28c95a79e399e18c03f8178f41aec9c66e4 before 39c1504e0e76bcfb93991fd94288a83e05d13b51; from da32b28c95a79e399e18c03f8178f41aec9c66e4 before a9e7815d38629bcf59d3005001f1f315424a58de; from da32b28c95a79e399e18c03f8178f41aec9c66e4 before 0c3d3ac57e3c52b570b8c695903306bff07e04c8; from da32b28c95a79e399e18c03f8178f41aec9c66e4 before d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478; 2a2df2bd10de44c3804661ed15157817c12d6291; from 5.7.10 before 5.8	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
linux linux_kernel linux:linux_kernel	from 5.7.10 before 5.8; from 5.8.1 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 5.8; 5.8; and 6 more ranges	NVD

References

References

https://git.kernel.org/stable/c/a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658	patch
https://git.kernel.org/stable/c/54d77cc0c40ca2f894859dc7b3c52997574f1a2a	patch
https://git.kernel.org/stable/c/39c1504e0e76bcfb93991fd94288a83e05d13b51	patch
https://git.kernel.org/stable/c/a9e7815d38629bcf59d3005001f1f315424a58de	patch
https://git.kernel.org/stable/c/0c3d3ac57e3c52b570b8c695903306bff07e04c8	patch
https://git.kernel.org/stable/c/d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478	patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-457936.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.