CVE-2022-49659

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

26/02/2025

Last modified:

22/10/2025

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.13 (including)	5.15.54 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.18.11 (excluding)
cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::
cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49659

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools