SUSE-SU-2026:3809-1: important: Security update for the Linux Kernel
SLE-SECURITY-UPDATES
null at suse.de
Wed Aug 26 16:52:21 UTC 2026
# Security update for the Linux Kernel
Announcement ID: SUSE-SU-2026:3809-1
Release Date: 2026-08-26T10:44:29Z
Rating: important
References:
* bsc#1255616
* bsc#1258340
* bsc#1269289
* bsc#1269773
* bsc#1269986
* bsc#1269988
* bsc#1269993
* bsc#1269997
* bsc#1270059
* bsc#1272268
* bsc#1272855
* bsc#1273742
* bsc#1274072
Cross-References:
* CVE-2023-53995
* CVE-2026-23204
* CVE-2026-52986
* CVE-2026-53131
* CVE-2026-53196
* CVE-2026-53224
* CVE-2026-53246
* CVE-2026-53256
* CVE-2026-53359
* CVE-2026-63806
* CVE-2026-63922
* CVE-2026-63924
* CVE-2026-64114
* CVE-2026-64564
CVSS scores:
* CVE-2023-53995 ( SUSE ): 7.3
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2023-53995 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-23204 ( SUSE ): 6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-23204 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-23204 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
* CVE-2026-23204 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
* CVE-2026-52986 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-52986 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53131 ( SUSE ): 8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-53131 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-53131 ( NVD ): 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
* CVE-2026-53196 ( SUSE ): 7.0
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-53196 ( SUSE ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53196 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53196 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53224 ( SUSE ): 7.3
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-53224 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53224 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
* CVE-2026-53246 ( SUSE ): 8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
* CVE-2026-53246 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
* CVE-2026-53246 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53256 ( SUSE ): 7.7
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-53256 ( SUSE ): 7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53256 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-53359 ( 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-2026-53359 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-53359 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-63806 ( SUSE ): 5.9
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-63806 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
* CVE-2026-63806 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
* CVE-2026-63922 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-63922 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-63924 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-63924 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-64114 ( SUSE ): 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-64114 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-64114 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-64564 ( SUSE ): 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-64564 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-64564 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 14 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-2023-53995: net: ipv4: fix one memleak in __inet_del_ifa()
(bsc#1255616).
* CVE-2026-23204: net: add skb_header_pointer_careful() helper (bsc#1258340).
* CVE-2026-52986: netfilter: nf_conntrack_sip: don't use simple_strtoul
(bsc#1269289).
* CVE-2026-53131: netfilter: require Ethernet MAC header before using
eth_hdr() (bsc#1269773).
* CVE-2026-53196: USB: serial: io_ti: fix heap overflow in get_manuf_info()
(bsc#1269986).
* CVE-2026-53224: sctp: validate embedded INIT chunk and address list lengths
in cookie (bsc#1269997).
* CVE-2026-53246: sctp: validate cached peer INIT chunk length in COOKIE_ECHO
processing (bsc#1269988).
* CVE-2026-53256: Bluetooth: RFCOMM: hold listener socket in
rfcomm_connect_ind() (bsc#1269993).
* CVE-2026-63806: KVM: Replace guest-triggerable BUG_ON() in ioeventfd
datamatch with get_unaligned() (bsc#1272268).
* CVE-2026-63922: ipv6: exthdrs: recompute network header pointer once
(bsc#1272855).
* CVE-2026-63924: ipv6: exthdrs: recompute network header pointer once
(bsc#1272855).
* CVE-2026-64114: ipv4: raw: reject IP_HDRINCL packets with ihl < 5
(bsc#1273742).
* CVE-2026-64564: sctp: don't free the ASCONF's own transport in DEL-IP
processing (bsc#1274072).
The following non security issues were fixed:
* scripts/cve_tools/kpm-bot: quote branch pattern properly.
* sctp: validate embedded address parameter length (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-2026-3809=1
* SUSE Linux Enterprise Server 11 SP4
zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-3809=1
## Package List:
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (x86_64)
* kernel-default-debugsource-3.0.101-108.216.1
* kernel-ec2-debugsource-3.0.101-108.216.1
* kernel-xen-debugsource-3.0.101-108.216.1
* kernel-ec2-devel-debuginfo-3.0.101-108.216.1
* kernel-trace-base-3.0.101-108.216.1
* kernel-trace-debuginfo-3.0.101-108.216.1
* kernel-xen-base-3.0.101-108.216.1
* kernel-ec2-base-3.0.101-108.216.1
* kernel-xen-devel-debuginfo-3.0.101-108.216.1
* kernel-default-debuginfo-3.0.101-108.216.1
* kernel-trace-devel-3.0.101-108.216.1
* kernel-default-base-3.0.101-108.216.1
* kernel-xen-devel-3.0.101-108.216.1
* kernel-trace-debugsource-3.0.101-108.216.1
* kernel-ec2-devel-3.0.101-108.216.1
* kernel-default-devel-3.0.101-108.216.1
* kernel-default-devel-debuginfo-3.0.101-108.216.1
* kernel-xen-debuginfo-3.0.101-108.216.1
* kernel-source-3.0.101-108.216.1
* kernel-trace-devel-debuginfo-3.0.101-108.216.1
* kernel-ec2-debuginfo-3.0.101-108.216.1
* kernel-syms-3.0.101-108.216.1
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (nosrc x86_64)
* kernel-ec2-3.0.101-108.216.1
* kernel-trace-3.0.101-108.216.1
* kernel-default-3.0.101-108.216.1
* kernel-xen-3.0.101-108.216.1
* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (noarch nosrc)
* kernel-docs-3.0.101-108.216.1
* SUSE Linux Enterprise Server 11 SP4 (x86_64)
* kernel-default-debugsource-3.0.101-108.216.1
* kernel-ec2-debugsource-3.0.101-108.216.1
* kernel-xen-debugsource-3.0.101-108.216.1
* kernel-ec2-devel-debuginfo-3.0.101-108.216.1
* kernel-trace-base-3.0.101-108.216.1
* kernel-trace-debuginfo-3.0.101-108.216.1
* kernel-xen-base-3.0.101-108.216.1
* kernel-ec2-base-3.0.101-108.216.1
* kernel-xen-devel-debuginfo-3.0.101-108.216.1
* kernel-default-debuginfo-3.0.101-108.216.1
* kernel-trace-devel-3.0.101-108.216.1
* kernel-default-base-3.0.101-108.216.1
* kernel-xen-devel-3.0.101-108.216.1
* kernel-trace-debugsource-3.0.101-108.216.1
* kernel-ec2-devel-3.0.101-108.216.1
* kernel-default-devel-3.0.101-108.216.1
* kernel-default-devel-debuginfo-3.0.101-108.216.1
* kernel-xen-debuginfo-3.0.101-108.216.1
* kernel-source-3.0.101-108.216.1
* kernel-trace-devel-debuginfo-3.0.101-108.216.1
* kernel-ec2-debuginfo-3.0.101-108.216.1
* kernel-syms-3.0.101-108.216.1
* SUSE Linux Enterprise Server 11 SP4 (nosrc x86_64)
* kernel-ec2-3.0.101-108.216.1
* kernel-trace-3.0.101-108.216.1
* kernel-default-3.0.101-108.216.1
* kernel-xen-3.0.101-108.216.1
* SUSE Linux Enterprise Server 11 SP4 (noarch nosrc)
* kernel-docs-3.0.101-108.216.1
## References:
* https://www.suse.com/security/cve/CVE-2023-53995.html
* https://www.suse.com/security/cve/CVE-2026-23204.html
* https://www.suse.com/security/cve/CVE-2026-52986.html
* https://www.suse.com/security/cve/CVE-2026-53131.html
* https://www.suse.com/security/cve/CVE-2026-53196.html
* https://www.suse.com/security/cve/CVE-2026-53224.html
* https://www.suse.com/security/cve/CVE-2026-53246.html
* https://www.suse.com/security/cve/CVE-2026-53256.html
* https://www.suse.com/security/cve/CVE-2026-53359.html
* https://www.suse.com/security/cve/CVE-2026-63806.html
* https://www.suse.com/security/cve/CVE-2026-63922.html
* https://www.suse.com/security/cve/CVE-2026-63924.html
* https://www.suse.com/security/cve/CVE-2026-64114.html
* https://www.suse.com/security/cve/CVE-2026-64564.html
* https://bugzilla.suse.com/show_bug.cgi?id=1255616
* https://bugzilla.suse.com/show_bug.cgi?id=1258340
* https://bugzilla.suse.com/show_bug.cgi?id=1269289
* https://bugzilla.suse.com/show_bug.cgi?id=1269773
* https://bugzilla.suse.com/show_bug.cgi?id=1269986
* https://bugzilla.suse.com/show_bug.cgi?id=1269988
* https://bugzilla.suse.com/show_bug.cgi?id=1269993
* https://bugzilla.suse.com/show_bug.cgi?id=1269997
* https://bugzilla.suse.com/show_bug.cgi?id=1270059
* https://bugzilla.suse.com/show_bug.cgi?id=1272268
* https://bugzilla.suse.com/show_bug.cgi?id=1272855
* https://bugzilla.suse.com/show_bug.cgi?id=1273742
* https://bugzilla.suse.com/show_bug.cgi?id=1274072
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