What is CVE-2022-49659?

CVE-2022-49659 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.13 onward and patched in 5.15.54, 5.18.11 and 5.19. CVE-2022-49659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49659?

CVE-2022-49659 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-2022-49659?

Yes, CVE-2022-49659 has been patched. Fixed versions include 5.15.54, 5.18.11 and 5.19. If you are running Linux kernel 5.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49659 actively exploited?

CVE-2022-49659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49659

Medium

In the Linux kernel, the following vulnerability has been resolved: can: m_can: m_can_{read_fifo,echo_tx_event}(): shift timestamp to full 32 bits In commit 1be37d3b0414 ("can: m_can: fix periph RX path: use rx-offload to ensure skbs are sent from softirq context") the RX path for peripheral devices was switched to RX-offload. Received CAN frames are pushed to RX-offload together with a timestamp. RX-offload is designed to handle overflows of the timestamp correctly, if 32 bit timestamps are provided. The timestamps of m_can core are only 16 bits wide. So this patch shifts them to full 32 bit before passing them to RX-offload.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-22

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

Affected versions

Linux kernel versions 5.13 and later are affected. Fixed in 5.15.54, 5.18.11, 5.19 and their respective stable series.

Affected from

≥ 5.13

Fixed in

✓ 5.15.54 5.15.x ✓ 5.18.11 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49659 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/2a2914a5bd7f38efe55a8372178146de82e0bce9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4c3333693f07313f5f0145a922f14a7d3c0f4f21
Patch
Kernel patch commit
https://git.kernel.org/stable/c/c7333f79888497bfd75dcd02a94eaf836dd1042c
Patch

Details

CVE ID CVE-2022-49659

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-22

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49659?

CVE-2022-49659 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.13 onward and has been patched in 5.15.54, 5.18.11 and 5.19. CVE-2022-49659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49659?

CVE-2022-49659 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-2022-49659?

Yes — CVE-2022-49659 has been patched. Fixed versions include 5.15.54, 5.18.11 and 5.19. If you are running Linux kernel 5.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49659 actively exploited?

No — CVE-2022-49659 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.