What’s Vulnerable › Vulnerabilities

CVE-2025-71163: dmaengine: idxd: fix device leaks on compat bind and unbind

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-25 · updated 2026-10-15
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix device leaks on compat bind and unbind Make sure to drop the reference taken when looking up the idxd device as part of the compat bind and unbind sysfs interface.

Affected products

• Linux kernel: from 5.15 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.67; from 6.13 before 6.18.7; 6.19-rc1, 6.19-rc2, 6.19-rc3, 6.19-rc4, 6.19-rc5 — fixed in 5.15.199, 6.1.162, 6.12.67, 6.18.7, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.15.199, 6.1.162, 6.12.67, 6.18.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0c97ff108f825a70c3bb29d65ddf0a013d231bb9
• https://git.kernel.org/stable/c/799900f01792cf8b525a44764f065f83fcafd468
• https://git.kernel.org/stable/c/a7226fd61def74b60dd8e47ec84cabafc39d575b
• https://git.kernel.org/stable/c/b2d077180a56e3b7c97b7517d0465b584adc693b
• https://git.kernel.org/stable/c/b7bd948f89271c92d9ca9b2b682bfba56896e959
• https://git.kernel.org/stable/c/c81ea0222eaaafdd77348e27d1e84a1b8cfc0c99
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html

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