SB2026031341 - Anolis OS update for kernel:4.18
Published: March 13, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Memory leak (CVE-ID: CVE-2022-50856)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the cifs_ses_add_channel() function in fs/cifs/sess.c. A local user can perform a denial of service (DoS) attack.
2) Resource management error (CVE-ID: CVE-2025-71085)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the calipso_skbuff_setattr() function in net/ipv6/calipso.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2026-23001)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
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_hash_lookup_source(), macvlan_hash_add_source(), macvlan_hash_add(), macvlan_flush_sources(), macvlan_forward_source() and macvlan_fill_info_macaddr() functions in drivers/net/macvlan.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.