SB2026031532 - openEuler 20.03 LTS SP4 update for kernel
Published: March 15, 2026
Security Bulletin ID
SB2026031532
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2025-39902)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the object_err() function in mm/slub.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2026-23209)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the macvlan_common_newlink() function in drivers/net/macvlan.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.