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openSUSE Linux Kernel Important Security Fixes DoS 2026-2989-1

opensuse
Calendar Grey July 14, 2026
Dist Opensuse Esm H88
Update now available for openSUSE addressing multiple vulnerabilities in kernel, critical for system security. Install promptly.
An update that solves 11 vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.166 fixes

various security issues

The following security issues were fixed:

* CVE-2026-31758: usb: usbtmc: Flush anchored URBs in usbtmc_release

(bsc#1264094).

* CVE-2026-43037: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (bsc#1265197).

* CVE-2026-43366: io_uring/kbuf: check if target buffer list is still legacy

on recycle (bsc#1265117).

* CVE-2026-43501: ipv6: rpl: reserve mac_len headroom when recompressed SRH

grows (bsc#1266015).

* CVE-2026-45970: bonding: alb: fix UAF in rlb_arp_recv during bond up/down

(bsc#1267206).

* CVE-2026-46120: ip6_gre: Use cached t->net in ip6erspan_changelink()

(bsc#1267893).

* CVE-2026-46173: exit: prevent preemption of oopsing TASK_DEAD task

(bsc#1267723).

* CVE-2026-46227: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in

SCTP_SENDALL (bsc#1267698).

* CVE-2026-46243: smb: client: reject userspace cifs.spnego descriptions

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory DoS vulnerability important kernel OpenSUSE

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* SUSE Linux Enterprise Live Patching 15-SP5

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2026-2989=1

* openSUSE Leap 15.5

zypper in -t patch SUSE-2026-2989=1

Package List

* SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150500_55_166-default-2-150500.2.2

* kernel-livepatch-5_14_21-150500_55_166-default-debuginfo-2-150500.2.2

* kernel-livepatch-SLE15-SP5_Update_40-debugsource-2-150500.2.2

* openSUSE Leap 15.5 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150500_55_166-default-2-150500.2.2

* kernel-livepatch-5_14_21-150500_55_166-default-debuginfo-2-150500.2.2

* kernel-livepatch-SLE15-SP5_Update_40-debugsource-2-150500.2.2

References

* bsc#1264094

* bsc#1265117

* bsc#1265197

* bsc#1266015

* bsc#1266265

* bsc#1267206

* bsc#1267698

* bsc#1267723

* bsc#1267893

* bsc#1268662

* bsc#1269023

## References:

* https://www.suse.com/security/cve/CVE-2026-31758.html

* https://www.suse.com/security/cve/CVE-2026-43037.html

* https://www.suse.com/security/cve/CVE-2026-43366.html

* https://www.suse.com/security/cve/CVE-2026-43501.html

* https://www.suse.com/security/cve/CVE-2026-45970.html

* https://www.suse.com/security/cve/CVE-2026-46120.html

* https://www.suse.com/security/cve/CVE-2026-46173.html

* https://www.suse.com/security/cve/CVE-2026-46227.html

* https://www.suse.com/security/cve/CVE-2026-46243.html

* https://www.suse.com/security/cve/CVE-2026-52909.html

* https://www.suse.com/security/cve/CVE-2026-52943.html

* https://bugzilla.suse.com/show_bug.cgi?id=1264094

* https://bugzilla.suse.com/show_bug.cgi?id=1265117

* https://bugzilla.suse.com/show_bug.cgi?id=1265197

* https://bugzilla.suse.com/show_bug.cgi?id=1266015

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2989-1
Release Date: 2026-07-14T15:46:16Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise Live Patching 15-SP5 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Real Time 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory DoS vulnerability important kernel OpenSUSE

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