In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

Related CVEs

CVE-2020-7462

Key Information

GHSA ID

GHSA-vfw2-5cx4-6c4q

Published

May 24, 2022 5:45 PM

Last Modified

May 24, 2022 5:45 PM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 31, 2025 6:36 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.