SUSE-SU-2026:24510-1: Security update for the Linux Kernel RT (Live Patch 26 for SUSE Linux Enterprise Micro 6.0)
This update for the SUSE Linux Enterprise Kernel 6.4.0-49.1 fixes various security issues:
The following security issues were fixed:
- 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-2026-74469: 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 6.4.0-49.1 fixes various security issues: The following security issues were fixed: 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-2026-74469: 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_26to a version that resolves this vulnerability.Fixed in 6-1.1 - Upgrade
Upgrade
suse/kernel-livepatch-MICROto a version that resolves this vulnerability.Fixed in 6-0-RT_Update_26-debugsource-6-1.1 - Upgrade
Upgrade
suse/kernel-livepatchto a version that resolves this vulnerability.Fixed in 6_4_0-49-rt-6-1.1 - Upgrade
Upgrade
suse/kernel-livepatchto a version that resolves this vulnerability.Fixed in 6_4_0-49-rt-debuginfo-6-1.1 - Upgrade
Upgrade
SUSE Linux Enterprise Kernelto a version that resolves this vulnerability.Fixed in 6.4.0-49.1Patch SUSE-SLE-Micro-6.0-kernel-755
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
Which systems is this update intended for?
The advisory identifies SUSE Linux Enterprise Micro 6.0 systems using the Linux Kernel RT live patch stream. It addresses security fixes in the SUSE Linux Enterprise Kernel 6.4.0-49.1.
Which kernel areas receive security fixes in this update?
The listed fixes affect virtiofs, IPv4 and IPv6 networking, netfs, XFRM, SCTP, IPVS, SUNRPC, and NFS server code. Systems using relevant filesystem, network, RPC, or NFS server functionality should prioritize applying the update.