What is CVE-2022-48816?

CVE-2022-48816 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.10.67 onward and patched in 5.15.209, 5.16.10 and 5.17. CVE-2022-48816 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48816?

CVE-2022-48816 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-48816?

Yes, CVE-2022-48816 has been patched. Fixed versions include 5.15.209, 5.16.10 and 5.17. If you are running Linux kernel 5.10.67 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48816 actively exploited?

CVE-2022-48816 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2022-48816

Medium

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

Package Linux Kernel

Published 2024-07-16

Last modified 2026-06-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2022-48816 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.10.67, 5.13.19, 5.14 and later are affected. Fixed in 5.15.209, 5.16.10, 5.17 and their respective stable series.

Affected from

≥ 5.10.67 ≥ 5.13.19 ≥ 5.14

Fixed in

✓ 5.15.209 5.15.x ✓ 5.16.10 5.16.x ✓ 5.17

References

3 total

Kernel Git
https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07

Patch
Kernel Git
https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee

Patch
Kernel Git
https://git.kernel.org/stable/c/fdc42287ae3f8a35cc2098307f52d7864b4bc8ed

Details

CVE ID CVE-2022-48816

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-07-16

Modified 2026-06-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48816?

CVE-2022-48816 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.10.67 onward and has been patched in 5.15.209, 5.16.10 and 5.17. CVE-2022-48816 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48816?

CVE-2022-48816 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-48816?

Yes. CVE-2022-48816 has been patched. Fixed versions include 5.15.209, 5.16.10 and 5.17. If you are running Linux kernel 5.10.67 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48816 actively exploited?

No. CVE-2022-48816 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.