SB20260815310 - Double free in Linux kernel ethernet sun driver
Published: August 15, 2026
Security Bulletin ID
SB20260815310
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Double free (CVE-ID: CVE-2026-72406)
CWE-ID: CWE-415 - Double Free
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to double free in gem_init_one() in the sungem network driver when handling a failed register_netdev() call during device probe. A local user can trigger the vulnerable error path to cause a denial of service.
The issue occurs in the probe error cleanup path for a half-registered device.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/331c99029a1cee1111f82f63d15b3cdebefbd341
- https://git.kernel.org/stable/c/36dea2f639249460d13f6ca66b2a9064187cd34d
- https://git.kernel.org/stable/c/a63eaf7605d1579cf3f551792e478cfaf5ac37d1
- https://git.kernel.org/stable/c/b15a3cc68e2450aa0edd94a74a7bdd45fcc17dd9
- https://git.kernel.org/stable/c/bc49e8746584564dba47d963d1916cc876fc6f6b
- https://git.kernel.org/stable/c/f1d04fefb0c2a2de32d9cee22cdc2088be3758d1
- https://git.kernel.org/stable/c/f3bd60b26814b7c3c57c629abb0857dfc76d214a
- https://git.kernel.org/stable/c/fb73cdc50b6755e5c3a80a195b2708a39ada0230