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ubuntucveUbuntu.comUB:CVE-2021-46917
HistoryFeb 27, 2024 - 12:00 a.m.

CVE-2021-46917

2024-02-2700:00:00
ubuntu.com
ubuntu.com
13
linux kernel
dma vulnerability
idxd

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.8

Confidence

High

EPSS

0

Percentile

15.5%

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.

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.8

Confidence

High

EPSS

0

Percentile

15.5%