What is CVE-2022-49975?

CVE-2022-49975 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 4.9 onward and patched in 5.4.212, 5.10.141, 5.15.65 and others. CVE-2022-49975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49975?

CVE-2022-49975 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-49975?

Yes, CVE-2022-49975 has been patched. Fixed versions include 5.4.212, 5.10.141, 5.15.65 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49975 actively exploited?

CVE-2022-49975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49975

High

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't redirect packets with invalid pkt_len Syzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any skbs, that is, the flow->head is null. The root cause, as the [2] says, is because that bpf_prog_test_run_skb() run a bpf prog which redirects empty skbs. So we should determine whether the length of the packet modified by bpf prog or others like bpf_prog_test is valid before forwarding it directly.

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-13

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.9 and later are affected. Fixed in 5.4.212, 5.10.141, 5.15.65, 5.19.7, 6.0 and their respective stable series.

Affected from

≥ 4.9

Fixed in

✓ 5.4.212 5.4.x ✓ 5.10.141 5.10.x ✓ 5.15.65 5.15.x ✓ 5.19.7 5.19.x ✓ 6.0

References

5 total

Kernel Git
https://git.kernel.org/stable/c/6204bf78b2a903b96ba43afff6abc0b04d6e0462

Patch
Kernel Git
https://git.kernel.org/stable/c/72f2dc8993f10262092745a88cb2dd0fef094f23

Patch
Kernel Git
https://git.kernel.org/stable/c/8b68e53d56697a59b5c53893b53f508bbdf272a0

Patch
Kernel Git
https://git.kernel.org/stable/c/a75987714bd2d8e59840667a28e15c1fa5c47554

Patch
Kernel Git
https://git.kernel.org/stable/c/fd1894224407c484f652ad456e1ce423e89bb3eb

Patch

Details

CVE ID CVE-2022-49975

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-13

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49975?

CVE-2022-49975 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.9 onward and has been patched in 5.4.212, 5.10.141, 5.15.65 and others. CVE-2022-49975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49975?

CVE-2022-49975 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-49975?

Yes. CVE-2022-49975 has been patched. Fixed versions include 5.4.212, 5.10.141, 5.15.65 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49975 actively exploited?

No. CVE-2022-49975 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.