Debian: CVE-2021-47519: linux -- security update

Debian: CVE-2021-47519: linux -- security update

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

05/24/2024

Created

07/31/2024

Added

07/30/2024

Modified

01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: can: m_can: m_can_read_fifo: fix memory leak in error branch In m_can_read_fifo(), if the second call to m_can_fifo_read() fails, the function jump to the out_fail label and returns without calling m_can_receive_skb(). This means that the skb previously allocated by alloc_can_skb() is not freed. In other terms, this is a memory leak. This patch adds a goto label to destroy the skb if an error occurs. Issue was found with GCC -fanalyzer, please follow the link below for details.

Solution(s)

• debian-upgrade-linux

References

• https://attackerkb.com/topics/cve-2021-47519
• CVE - 2021-47519