What is CVE-2021-47354?

CVE-2021-47354 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.1 out of 10, classified as a Out-of-bounds Write flaw (CWE-787), affecting Linux kernel versions from 4.3 onward and patched in 5.4.133, 5.10.51, 5.12.18 and others. CVE-2021-47354 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47354?

CVE-2021-47354 has a CVSS score of 9.1 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2021-47354?

Yes, CVE-2021-47354 has been patched. Fixed versions include 5.4.133, 5.10.51, 5.12.18 and others. If you are running Linux kernel 4.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47354 actively exploited?

CVE-2021-47354 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2021-47354

Critical

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Avoid data corruptions Wait for all dependencies of a job to complete before killing it to avoid data corruptions.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-02

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.1

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2021-47354 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.3 and later are affected. Fixed in 5.4.133, 5.10.51, 5.12.18, 5.13.3, 5.14 and their respective stable series.

Affected from

≥ 4.3

Fixed in

✓ 5.4.133 5.4.x ✓ 5.10.51 5.10.x ✓ 5.12.18 5.12.x ✓ 5.13.3 5.13.x ✓ 5.14

References

5 total

Kernel Git
https://git.kernel.org/stable/c/0687411e2a8858262de2fc4a1d576016fd77292e

Patch
Kernel Git
https://git.kernel.org/stable/c/0b10ab80695d61422337ede6ff496552d8ace99d

Patch
Kernel Git
https://git.kernel.org/stable/c/50d7e03ad487cc45fc85164a299b945a41756ac0

Patch
Kernel Git
https://git.kernel.org/stable/c/a8e23e3c1ff9ec598ab1b3a941ace6045027781f

Patch
Kernel Git
https://git.kernel.org/stable/c/c32d0f0e164ffab2a56c7cf8e612584b4b740e2e

Patch

Details

CVE ID CVE-2021-47354

Severity Critical

CVSS score 9.1 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47354?

CVE-2021-47354 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.1 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 4.3 onward and has been patched in 5.4.133, 5.10.51, 5.12.18 and others. CVE-2021-47354 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47354?

CVE-2021-47354 has a CVSS score of 9.1 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2021-47354?

Yes. CVE-2021-47354 has been patched. Fixed versions include 5.4.133, 5.10.51, 5.12.18 and others. If you are running Linux kernel 4.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47354 actively exploited?

No. CVE-2021-47354 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.