CVE-2021-46917 - CVE House
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Status published Medium CVE-2021-46917

dmaengine: idxd: fix wq cleanup of WQCFG registers

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix wq cleanup of WQCFG registers A pre-release silicon erratum workaround where wq reset does not clear WQCFG registers was leaked into upstream code. Use wq reset command instead of blasting the MMIO region. This also address an issue where we clobber registers in future devices.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
da32b28c95a79e399e18c03f8178f41aec9c66e4, 2a2df2bd10de44c3804661ed15157817c12d6291, 5.7.10, 5.8, 0, 5.10.32, 5.11.16, 5.12

Timeline

Official Publish: February 27th, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.