What is CVE-2021-47315?

CVE-2021-47315 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.3 onward and patched in 4.9.276, 4.14.240, 4.19.198 and others. CVE-2021-47315 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47315?

CVE-2021-47315 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-2021-47315?

Yes, CVE-2021-47315 has been patched. Fixed versions include 4.9.276, 4.14.240, 4.19.198 and others. If you are running Linux kernel 3.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47315 actively exploited?

CVE-2021-47315 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47315

Medium

In the Linux kernel, the following vulnerability has been resolved: memory: fsl_ifc: fix leak of IO mapping on probe failure On probe error the driver should unmap the IO memory. Smatch reports: drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-05-12

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-617

CVE-2021-47315 is classified as CWE-617

See CWE-617 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 3.3 and later are affected. Fixed in 4.9.276, 4.14.240, 4.19.198, 5.4.134, 5.10.52, 5.12.19, 5.13.4, 5.14 and their respective stable series.

Affected from

≥ 3.3

Fixed in

✓ 4.9.276 4.9.x ✓ 4.14.240 4.14.x ✓ 4.19.198 4.19.x ✓ 5.4.134 5.4.x ✓ 5.10.52 5.10.x ✓ 5.12.19 5.12.x ✓ 5.13.4 5.13.x ✓ 5.14

References

10 total

Kernel Git
https://git.kernel.org/stable/c/28f71fd81ebd3b386bf5c7c5539664156f7d72c1

Patch
Kernel Git
https://git.kernel.org/stable/c/3b132ab67fc7a358fff35e808fa65d4bea452521

Patch
Kernel Git
https://git.kernel.org/stable/c/6b3b002de90738e3c85853a682ce7e0fa078d42b

Patch
Kernel Git
https://git.kernel.org/stable/c/83af5816308b490b05fc8fa27fc1bdc769df200a

Patch
Kernel Git
https://git.kernel.org/stable/c/8d071d270afba468708faca5f7b6d9e656f75e27

Patch

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2021-47315

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47315?

CVE-2021-47315 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.3 onward and has been patched in 4.9.276, 4.14.240, 4.19.198 and others. CVE-2021-47315 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47315?

CVE-2021-47315 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-2021-47315?

Yes. CVE-2021-47315 has been patched. Fixed versions include 4.9.276, 4.14.240, 4.19.198 and others. If you are running Linux kernel 3.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47315 actively exploited?

No. CVE-2021-47315 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.