ESB-2026.4119
PUBLISHED
CVSS 7.800000190734863 HIGH
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2026.4119
Security update for the Linux Kernel
24 April 2026
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AUSCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2025-68818 CVE-2026-23103 CVE-2026-23243
CVE-2026-23272 CVE-2026-23274 CVE-2025-38234
CVE-2026-23317
Original Bulletin:
https://www.suse.com/support/update/announcement/2026/suse-su-20261574-1
Comment: CVSS (Max): 7.8 CVE-2026-23317 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (Max): 0.1% (16th) CVE-2025-68818 2026-04-23
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Security update for the Linux Kernel
Announcement ID: SUSE-SU-2026:1574-1
Release Date: 2026-04-23T15:52:59Z
Rating: important
o bsc#1215492
o bsc#1246057
o bsc#1256675
o bsc#1257773
References: o bsc#1259797
o bsc#1260005
o bsc#1260009
o bsc#1260347
o bsc#1260562
o CVE-2025-38234
o CVE-2025-68818
o CVE-2026-23103
Cross-References: o CVE-2026-23243
o CVE-2026-23272
o CVE-2026-23274
o CVE-2026-23317
o CVE-2025-38234 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L
/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
o CVE-2025-38234 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:N/I:N/A:H
o CVE-2025-38234 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
S:U/C:N/I:N/A:H
o CVE-2025-68818 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:N/I:N/A:H
o CVE-2026-23103 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L
/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
o CVE-2026-23103 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:N/I:N/A:H
o CVE-2026-23103 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:N/I:N/A:H
o CVE-2026-23103 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2026-23243 ( 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
o CVE-2026-23243 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:H/I:H/A:H
CVSS scores: o CVE-2026-23243 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2026-23272 ( 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
o CVE-2026-23272 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2026-23272 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2026-23274 ( 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
o CVE-2026-23274 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2026-23274 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2026-23317 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L
/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
o CVE-2026-23317 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2026-23317 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/
S:U/C:H/I:H/A:H
Affected o openSUSE Leap 15.5
Products: o SUSE Linux Enterprise Micro 5.5
An update that solves seven vulnerabilities and has two security fixes can now
be installed.
Description:
The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various
security bugfixes.
The following security bugs were fixed:
o CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
o CVE-2025-68818: scsi: Revert "scsi: qla2xxx: Perform lockless command
completion in abort path" (bsc#1256675).
o CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
o CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#
1259797).
o CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems
before insertion (bsc#1260009).
o CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer
labels (bsc#1260005).
o CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr
functions (bsc#1260562).
The following non-security bugs were fixed:
o PCI/ACS: Fix 'pci=config_acs=' parameter (git-fixes).
o PCI: Fix lock symmetry in pci_slot_unlock() (git-fixes).
o PCI: Fix pci_slot_trylock() error handling (git-fixes).
o PCI: dwc: ep: Return -ENOMEM for allocation failures (git-fixes).
o PCI: tegra194: Fix duplicate PLL disable in pex_ep_event_pex_rst_assert()
(git-fixes).
o nvme-fc: use ctrl state getter (git-fixes bsc#1215492).
o nvme-pci: fix queue unquiesce check on slot_reset (git-fixes).
o nvme-pci: skip nvme_write_sq_db on empty rqlist (git-fixes).
o x86/platform/uv: Handle deconfigured sockets (bsc#1260347).
Special Instructions and Notes:
o 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:
o openSUSE Leap 15.5
zypper in -t patch SUSE-2026-1574=1
o SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2026-1574=1
Package List:
o openSUSE Leap 15.5 (noarch)
kernel-source-rt-5.14.21-150500.13.127.1
kernel-devel-rt-5.14.21-150500.13.127.1
o openSUSE Leap 15.5 (x86_64)
dlm-kmp-rt-5.14.21-150500.13.127.1
kernel-rt-optional-debuginfo-5.14.21-150500.13.127.1
kernel-rt-devel-5.14.21-150500.13.127.1
kernel-rt-optional-5.14.21-150500.13.127.1
reiserfs-kmp-rt-5.14.21-150500.13.127.1
kernel-rt_debug-vdso-5.14.21-150500.13.127.1
kernel-rt-extra-5.14.21-150500.13.127.1
ocfs2-kmp-rt-debuginfo-5.14.21-150500.13.127.1
kernel-rt-devel-debuginfo-5.14.21-150500.13.127.1
ocfs2-kmp-rt-5.14.21-150500.13.127.1
kselftests-kmp-rt-debuginfo-5.14.21-150500.13.127.1
gfs2-kmp-rt-5.14.21-150500.13.127.1
kernel-rt-debugsource-5.14.21-150500.13.127.1
kernel-rt_debug-vdso-debuginfo-5.14.21-150500.13.127.1
reiserfs-kmp-rt-debuginfo-5.14.21-150500.13.127.1
kernel-syms-rt-5.14.21-150500.13.127.1
kernel-rt-livepatch-5.14.21-150500.13.127.1
dlm-kmp-rt-debuginfo-5.14.21-150500.13.127.1
kernel-rt-debuginfo-5.14.21-150500.13.127.1
kernel-rt_debug-devel-debuginfo-5.14.21-150500.13.127.1
kselftests-kmp-rt-5.14.21-150500.13.127.1
cluster-md-kmp-rt-debuginfo-5.14.21-150500.13.127.1
cluster-md-kmp-rt-5.14.21-150500.13.127.1
gfs2-kmp-rt-debuginfo-5.14.21-150500.13.127.1
kernel-rt-livepatch-devel-5.14.21-150500.13.127.1
kernel-rt-vdso-debuginfo-5.14.21-150500.13.127.1
kernel-rt-vdso-5.14.21-150500.13.127.1
kernel-rt_debug-devel-5.14.21-150500.13.127.1
kernel-rt-extra-debuginfo-5.14.21-150500.13.127.1
kernel-rt_debug-debuginfo-5.14.21-150500.13.127.1
kernel-rt_debug-debugsource-5.14.21-150500.13.127.1
o openSUSE Leap 15.5 (nosrc x86_64)
kernel-rt-5.14.21-150500.13.127.1
kernel-rt_debug-5.14.21-150500.13.127.1
o SUSE Linux Enterprise Micro 5.5 (noarch)
kernel-source-rt-5.14.21-150500.13.127.1
kernel-devel-rt-5.14.21-150500.13.127.1
o SUSE Linux Enterprise Micro 5.5 (nosrc x86_64)
kernel-rt-5.14.21-150500.13.127.1
o SUSE Linux Enterprise Micro 5.5 (x86_64)
kernel-rt-debuginfo-5.14.21-150500.13.127.1
kernel-rt-debugsource-5.14.21-150500.13.127.1
References:
o https://www.suse.com/security/cve/CVE-2025-38234.html
o https://www.suse.com/security/cve/CVE-2025-68818.html
o https://www.suse.com/security/cve/CVE-2026-23103.html
o https://www.suse.com/security/cve/CVE-2026-23243.html
o https://www.suse.com/security/cve/CVE-2026-23272.html
o https://www.suse.com/security/cve/CVE-2026-23274.html
o https://www.suse.com/security/cve/CVE-2026-23317.html
o https://bugzilla.suse.com/show_bug.cgi?id=1215492
o https://bugzilla.suse.com/show_bug.cgi?id=1246057
o https://bugzilla.suse.com/show_bug.cgi?id=1256675
o https://bugzilla.suse.com/show_bug.cgi?id=1257773
o https://bugzilla.suse.com/show_bug.cgi?id=1259797
o https://bugzilla.suse.com/show_bug.cgi?id=1260005
o https://bugzilla.suse.com/show_bug.cgi?id=1260009
o https://bugzilla.suse.com/show_bug.cgi?id=1260347
o https://bugzilla.suse.com/show_bug.cgi?id=1260562
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