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nvd416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2021-46920
HistoryFeb 27, 2024 - 7:15 a.m.

CVE-2021-46920

2024-02-2707:15:08
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
6
linux kernel
vulnerability
dmaengine

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

5.6

Confidence

High

EPSS

0

Percentile

15.5%

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback

Current code blindly writes over the SWERR and the OVERFLOW bits. Write
back the bits actually read instead so the driver avoids clobbering the
OVERFLOW bit that comes after the register is read.

Affected configurations

Nvd
Node
linuxlinux_kernelRange5.6.05.10.32
OR
linuxlinux_kernelRange5.11.05.11.16
VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

5.6

Confidence

High

EPSS

0

Percentile

15.5%