CVE-2021-47671

LOW EPSS 4.4%
Published Apr 17, 20251y ago · Modified Jun 17, 20262w ago
3.3 CVSS 3.1
Low
Find Similar
Published Apr 17, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
3.3
Exploitability
1.8
Impact
1.4
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
4.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥5.13  –  <5.14.19
linuxlinux_kernel*≥5.15  –  <5.15.3

References 3

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

Remediation

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