What is CVE-2021-47490?

CVE-2021-47490 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 5.14 onward and patched in 5.14.16 and 5.15. CVE-2021-47490 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47490?

CVE-2021-47490 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47490?

Yes, CVE-2021-47490 has been patched. Fixed versions include 5.14.16 and 5.15. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47490 actively exploited?

CVE-2021-47490 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2021-47490

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447

Package Linux Kernel

Published 2024-05-22

Last modified 2025-01-24

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2021-47490 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.14 and later are affected. Fixed in 5.14.16, 5.15 and their respective stable series.

Affected from

≥ 5.14

Fixed in

✓ 5.14.16 5.14.x ✓ 5.15

References

6 total

Kernel Git
https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5

Patch
Kernel Git
https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd

Patch
Kernel Git
https://git.kernel.org/stable/c/960b1fdfc39aba8f41e9e27b2de0c925c74182d9

Patch
Kernel Git
https://git.kernel.org/stable/c/bbc920fb320f1c241cc34ac85edaa0058922246a

Patch
Kernel Git
https://git.kernel.org/stable/c/bd99782f3ca491879e8524c89b1c0f40071903bd

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2021-47490

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-22

Modified 2025-01-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47490?

CVE-2021-47490 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 5.14 onward and has been patched in 5.14.16 and 5.15. CVE-2021-47490 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47490?

CVE-2021-47490 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47490?

Yes. CVE-2021-47490 has been patched. Fixed versions include 5.14.16 and 5.15. If you are running Linux kernel 5.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47490 actively exploited?

No. CVE-2021-47490 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.