SB2026040679 - SUSE update for the Linux Kernel RT (Live Patch 6 for SUSE Linux Enterprise 15 SP7)
Published: April 6, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-40159)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the net/xdp/xsk_queue.h. A local user can perform a denial of service (DoS) attack.
2) NULL pointer dereference (CVE-ID: CVE-2025-71120)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the gss_read_proxy_verf() function in net/sunrpc/auth_gss/svcauth_gss.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2026-22999)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the qfq_change_class() function in net/sched/sch_qfq.c. A local user can escalate privileges on the system.
4) Use-after-free (CVE-ID: CVE-2026-23074)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the teql_qdisc_init() function in net/sched/sch_teql.c. A local user can escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2026-23111)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nft_map_catchall_activate() function in net/netfilter/nf_tables_api.c. A local user can escalate privileges on the system.
6) 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.