CVE-2021-47671

In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path In es58x_rx_err_msg(), if can->do_set_mode() fails, the function directly returns without calling netif_rx(skb). This means that the skb previously allocated by alloc_can_err_skb() is not freed. In other terms, this is a memory leak. This patch simply removes the return statement in the error branch and let the function continue. Issue was found with GCC -fanalyzer, please follow the link below for details.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4f389e1276a5389c92cef860c9fde8e1c802a871	Patch
https://git.kernel.org/stable/c/7eb0881aec26099089f12ae850aebd93190b1dfe	Patch
https://git.kernel.org/stable/c/d9447f768bc8c60623e4bb3ce65b8f4654d33a50	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-04-17 18:15

Updated : 2025-04-21 18:40

NVD link : CVE-2021-47671

Mitre link : CVE-2021-47671

CVE.ORG link : CVE-2021-47671

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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