SUSE-SU-2026:24503-1: Security update for the Linux Kernel RT (Live Patch 22 for SUSE Linux Enterprise Micro 6.0)
This update for the SUSE Linux Enterprise Kernel 6.4.0-45.1 fixes various security issues:
The following security issues were fixed:
- CVE-2026-53016: crypto: ccp - copy IV using skcipher ivsize (bsc#1269766). - CVE-2026-53381: virtiofs: fix UAF on submount umount (bsc#1271837). - CVE-2026-63968: ipv6: fix possible infinite loop in fib6selectpath() (bsc#1272521). - CVE-2026-64217: netfs: Fix overrun check in netfsextractuseriter() (bsc#1272874). - CVE-2026-68426: xfrm: fix stale skb->prev after async crypto steals a GSO segment (bsc#1274712). - CVE-2026-72262: ASoC: SOF: ipc3-control: Fix heap overflow in bytesext put/get (bsc#1277679). - CVE-2026-74469: sctp: prevent peer transport count overflow (bsc#1280693). - CVE-2026-74669: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (bsc#1277399). - CVE-2026-89544: SUNRPC: fix gssxdecoptionarray error path bugs (bsc#1280760). - CVE-2026-89551: SUNRPC: xdrbuftrim: clamp buf->len to avoid underflow (bsc#1280728). - CVE-2026-89674: nfsd: fix XDR length calculation in nfsd4ffencodelayoutget (bsc#1280285). - CVE-2026-98432: ipv4: free inetopt and ireqopt after an RCU grace period (bsc#1285686).
Other sources
This update for the SUSE Linux Enterprise Kernel 6.4.0-45.1 fixes various security issues: The following security issues were fixed: CVE-2026-53016: crypto: ccp - copy IV using skcipher ivsize (bsc#1269766). CVE-2026-53381: virtiofs: fix UAF on submount umount (bsc#1271837). CVE-2026-63968: ipv6: fix possible infinite loop in fib6selectpath() (bsc#1272521). CVE-2026-64217: netfs: Fix overrun check in netfsextractuseriter() (bsc#1272874). CVE-2026-68426: xfrm: fix stale skb->prev after async crypto steals a GSO segment (bsc#1274712). CVE-2026-72262: ASoC: SOF: ipc3-control: Fix heap overflow in bytesext put/get (bsc#1277679). CVE-2026-74469: sctp: prevent peer transport count overflow (bsc#1280693). CVE-2026-74669: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (bsc#1277399). CVE-2026-89544: SUNRPC: fix gssxdecoptionarray error path bugs (bsc#1280760). CVE-2026-89551: SUNRPC: xdrbuftrim: clamp buf->len to avoid underflow (bsc#1280728). CVE-2026-89674: nfsd: fix XDR length calculation in nfsd4ffencodelayoutget (bsc#1280285). CVE-2026-98432: ipv4: free inetopt and ireqopt after an RCU grace period (bsc#1285686).
— SUSE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
suse/kernel-livepatch-MICRO-6-0-RT_Update_22to a version that resolves this vulnerability.Fixed in 9-1.2 - Upgrade
Upgrade
suse/kernel-livepatch-MICROto a version that resolves this vulnerability.Fixed in 6-0-RT_Update_22-debugsource-9-1.2 - Upgrade
Upgrade
suse/kernel-livepatchto a version that resolves this vulnerability.Fixed in 6_4_0-45-rt-9-1.2 - Upgrade
Upgrade
suse/kernel-livepatchto a version that resolves this vulnerability.Fixed in 6_4_0-45-rt-debuginfo-9-1.2 - Upgrade
Upgrade
SUSE Linux Enterprise Kernel RTto a version that resolves this vulnerability.Fixed in 6.4.0-45.1Patch SUSE-SLE-Micro-6.0-kernel-747
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which kernel subsystems are addressed by this update?
The listed fixes affect crypto CCP, virtiofs, IPv4 and IPv6 networking, netfs, xfrm, ASoC SOF, SCTP, IPVS, SUNRPC, and NFS server code.
Does the advisory provide temporary mitigations if the update cannot be installed immediately?
No temporary mitigations or configuration workarounds are provided in the advisory.
Does the advisory describe exploitation prerequisites or known active exploitation?
No. It lists the affected components and vulnerability fixes, but does not provide attacker prerequisites, exposure conditions, or information about active exploitation.