CVE-2022-49659

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.

The following products are affected by CVE-2022-49659 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49659.

URL	Resource
https://git.kernel.org/stable/c/2a2914a5bd7f38efe55a8372178146de82e0bce9
https://git.kernel.org/stable/c/4c3333693f07313f5f0145a922f14a7d3c0f4f21
https://git.kernel.org/stable/c/c7333f79888497bfd75dcd02a94eaf836dd1042c
https://lore.kernel.org/linux-cve-announce/2025022622-CVE-2022-49659-31c4@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49659
https://www.cve.org/CVERecord?id=CVE-2022-49659