CVE - CVE-2022-49659

CVE-ID
CVE-2022-49659	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2a2914a5bd7f38efe55a8372178146de82e0bce9 URL:https://git.kernel.org/stable/c/2a2914a5bd7f38efe55a8372178146de82e0bce9 MISC:https://git.kernel.org/stable/c/4c3333693f07313f5f0145a922f14a7d3c0f4f21 URL:https://git.kernel.org/stable/c/4c3333693f07313f5f0145a922f14a7d3c0f4f21 MISC:https://git.kernel.org/stable/c/c7333f79888497bfd75dcd02a94eaf836dd1042c URL:https://git.kernel.org/stable/c/c7333f79888497bfd75dcd02a94eaf836dd1042c
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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