SB20260928223 - Memory leak in Linux kernel ethernet cadence driver
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928223
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2026-97973)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to leak phylink instances.
The vulnerability exists due to improper resource management in the macb driver probe error path when handling a failed macb_alloc_tieoff() or register_netdev() operation. A local privileged user can trigger a driver probe failure to leak phylink instances.
Remediation
Install update from vendor's website.