SUSE-SU-2026:4933-1: important: Security update for the Linux Kernel
SLE-SECURITY-UPDATES
null at suse.de
Thu Oct 29 16:47:30 UTC 2026
# Security update for the Linux Kernel
Announcement ID: SUSE-SU-2026:4933-1
Release Date: 2026-10-29T09:17:03Z
Rating: important
References:
* bsc#1277821
* bsc#1280387
* bsc#1281280
* bsc#1285684
Cross-References:
* CVE-2026-74587
* CVE-2026-89542
* CVE-2026-90011
* CVE-2026-99999
CVSS scores:
* CVE-2026-74587 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-74587 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-89542 ( SUSE ): 7.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
* CVE-2026-89542 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-90011 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-90011 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
* CVE-2026-99999 ( SUSE ): 9.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
* CVE-2026-99999 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-99999 ( NVD ): 9.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products:
* SUSE Linux Enterprise Server 11 SP4
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
An update that solves four vulnerabilities can now be installed.
## Description:
The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security
issues:
The following security issues were fixed:
* CVE-2026-74587: sctp: fix use-after-free of cached ASCONF chunk
(bsc#1277821).
* CVE-2026-89542: SUNRPC: harden gss_krb5_unwrap_v2 against short tokens
(bsc#1280387).
* CVE-2026-90011: scsi: target: iscsi: Reserve a terminator byte for the login
payload (bsc#1281280).
* CVE-2026-99999: ipv4: validate checksum_start before completing checksum
(bsc#1285684).
The following non security issues were fixed:
* ACPI, APEI, EINJ: Subtract any matching Register Region from Trigger
resources (git-fixes).
* ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-
fixes).
* PCI: pciehp: Use RMW accessors for changing LNKCTL (git-fixes).
* PCI: PM: Fix pci_power_up() (git-fixes).
## Special Instructions and Notes:
* Please reboot the system after installing this update.
## 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 Server 11 SP4 LTSS EXTREME CORE
zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-4933
* SUSE Linux Enterprise Server 11 SP4
zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-4933
## Package List:
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (nosrc x86_64)
* kernel-default-3.0.101-108.226.1
* kernel-xen-3.0.101-108.226.1
* kernel-ec2-3.0.101-108.226.1
* kernel-trace-3.0.101-108.226.1
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (x86_64)
* kernel-trace-debuginfo-3.0.101-108.226.1
* kernel-default-debuginfo-3.0.101-108.226.1
* kernel-xen-debuginfo-3.0.101-108.226.1
* kernel-xen-devel-3.0.101-108.226.1
* kernel-syms-3.0.101-108.226.1
* kernel-xen-base-3.0.101-108.226.1
* kernel-xen-devel-debuginfo-3.0.101-108.226.1
* kernel-default-devel-debuginfo-3.0.101-108.226.1
* kernel-ec2-devel-3.0.101-108.226.1
* kernel-trace-debugsource-3.0.101-108.226.1
* kernel-default-base-3.0.101-108.226.1
* kernel-ec2-base-3.0.101-108.226.1
* kernel-trace-devel-debuginfo-3.0.101-108.226.1
* kernel-ec2-devel-debuginfo-3.0.101-108.226.1
* kernel-trace-devel-3.0.101-108.226.1
* kernel-ec2-debugsource-3.0.101-108.226.1
* kernel-trace-base-3.0.101-108.226.1
* kernel-default-devel-3.0.101-108.226.1
* kernel-default-debugsource-3.0.101-108.226.1
* kernel-source-3.0.101-108.226.1
* kernel-xen-debugsource-3.0.101-108.226.1
* kernel-ec2-debuginfo-3.0.101-108.226.1
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (noarch nosrc)
* kernel-docs-3.0.101-108.226.1
* SUSE Linux Enterprise Server 11 SP4 (nosrc x86_64)
* kernel-default-3.0.101-108.226.1
* kernel-xen-3.0.101-108.226.1
* kernel-ec2-3.0.101-108.226.1
* kernel-trace-3.0.101-108.226.1
* SUSE Linux Enterprise Server 11 SP4 (x86_64)
* kernel-trace-debuginfo-3.0.101-108.226.1
* kernel-default-debuginfo-3.0.101-108.226.1
* kernel-xen-debuginfo-3.0.101-108.226.1
* kernel-xen-devel-3.0.101-108.226.1
* kernel-syms-3.0.101-108.226.1
* kernel-xen-base-3.0.101-108.226.1
* kernel-xen-devel-debuginfo-3.0.101-108.226.1
* kernel-default-devel-debuginfo-3.0.101-108.226.1
* kernel-ec2-devel-3.0.101-108.226.1
* kernel-trace-debugsource-3.0.101-108.226.1
* kernel-default-base-3.0.101-108.226.1
* kernel-ec2-base-3.0.101-108.226.1
* kernel-trace-devel-debuginfo-3.0.101-108.226.1
* kernel-ec2-devel-debuginfo-3.0.101-108.226.1
* kernel-trace-devel-3.0.101-108.226.1
* kernel-ec2-debugsource-3.0.101-108.226.1
* kernel-trace-base-3.0.101-108.226.1
* kernel-default-devel-3.0.101-108.226.1
* kernel-default-debugsource-3.0.101-108.226.1
* kernel-source-3.0.101-108.226.1
* kernel-xen-debugsource-3.0.101-108.226.1
* kernel-ec2-debuginfo-3.0.101-108.226.1
* SUSE Linux Enterprise Server 11 SP4 (noarch nosrc)
* kernel-docs-3.0.101-108.226.1
## References:
* https://www.suse.com/security/cve/CVE-2026-74587.html
* https://www.suse.com/security/cve/CVE-2026-89542.html
* https://www.suse.com/security/cve/CVE-2026-90011.html
* https://www.suse.com/security/cve/CVE-2026-99999.html
* https://bugzilla.suse.com/show_bug.cgi?id=1277821
* https://bugzilla.suse.com/show_bug.cgi?id=1280387
* https://bugzilla.suse.com/show_bug.cgi?id=1281280
* https://bugzilla.suse.com/show_bug.cgi?id=1285684
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