Race condition in Linux kernel - CVE-2026-46028

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Main Vulnerability Database Vulnerabilities #VU132463

Race condition in Linux kernel - CVE-2026-46028

Published: May 28, 2026


Vulnerability identifier: #VU132463
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-46028
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the algif_aead AF_ALG AEAD request handling when processing asynchronous AEAD AIO requests. A local user can trigger concurrent socket activity to cause a denial of service.

The issue arises because in-flight operations depend on a mutable socket-wide IV buffer that can be changed before the original request completes.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Micro Extras
SUSE Linux Micro
SUSE Linux Enterprise Live Patching
Legacy Module
Public Cloud Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
Ubuntu
openEuler
kgraft-patch-4_12_14-122_320-default
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt
kernel-livepatch-6_4_0-150700_53_66-default-debuginfo
kernel-livepatch-6_4_0-150700_53_66-default
kernel-livepatch-SLE15-SP7_Update_18-debugsource
cluster-md-kmp-default-debuginfo
kernel-default-kgraft
kernel-default-base-debuginfo
kernel-default-debugsource
kernel-default-base
kernel-default-devel
kernel-source
kernel-macros
kernel-devel
kernel-default-man
kernel-default-kgraft-devel
dlm-kmp-default
kernel-default-debuginfo
dlm-kmp-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default
ocfs2-kmp-default-debuginfo
kernel-syms
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
kernel-default
kernel-default-devel-debuginfo
linux-aws-hwe (Ubuntu package)
kernel-tools
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
linux-aws-5.4 (Ubuntu package)
linux-raspi (Ubuntu package)
kernel-headers
linux-lowlatency (Ubuntu package)
linux-xilinx-zynqmp (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-azure (Ubuntu package)
kernel-rt-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-devel-rt
kernel-source-rt
kernel-rt-livepatch
kernel-rt-debugsource
kernel-rt
kernel-64kb-debugsource
kernel-64kb-devel
kernel-obs-build
kernel-obs-build-debugsource
kernel-64kb
kernel-default-livepatch
kernel-kvmsmall
kernel-rt-devel-debuginfo
kernel-rt-devel
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
dlm-kmp-rt
gfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
ocfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
kernel-azure
kernel-azure-devel-debuginfo
kernel-azure-debugsource
kernel-azure-debuginfo
kernel-azure-devel
kernel-default-extra-debuginfo
kernel-default-extra
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-debuginfo
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-default-livepatch-devel
kernel-docs
kernel-extra-modules
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)
linux (Ubuntu package)
linux-nvidia (Ubuntu package)

How to mitigate CVE-2026-46028

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kgraft-patch-4_12_14-122_320-default - update to 1-8.3.1
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_62-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_66-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_66-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_18-debugsource - update to 1-150700.15.3.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
kernel-default-kgraft - update to 4.12.14-122.320.1
kernel-default-base-debuginfo - update to 4.12.14-122.320.1
kernel-default-debugsource - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-base - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1.150700.17.39.1
kernel-default-devel - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-source - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-macros - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-devel - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-man - update to 4.12.14-122.320.1
kernel-default-kgraft-devel - update to 4.12.14-122.320.1
dlm-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
gfs2-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
kernel-syms - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.66.1
kernel-default - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-49.1, 6.4.0-150700.53.66.1
linux-aws-hwe (Ubuntu package) - addressed in versions 4.15.0-250.262~16.04.1, 4.15.0-1154.165~16.04.1, 4.15.0-1185.202~16.04.1, 4.15.0-1192.205~16.04.1, 4.15.0-1201.216~16.04.1
kernel-tools - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-source - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
bpftool - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
bpftool-debuginfo - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-debuginfo - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-devel - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-debugsource - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-tools-debuginfo - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
kernel-tools-devel - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
perf - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
perf-debuginfo - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
python2-perf - update to 4.19.90-2606.3.0.0376
python2-perf-debuginfo - update to 4.19.90-2606.3.0.0376
python3-perf - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
python3-perf-debuginfo - addressed in versions 4.19.90-2606.3.0.0376, 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
linux-aws-5.4 (Ubuntu package) - addressed in versions 5.4.0-231.251~18.04.1, 5.4.0-1160.170~18.04.1
linux-raspi (Ubuntu package) - addressed in versions 5.4.0-1143.156, 5.4.0-1143.156~18.04.1, 5.4.0.1143.174, 7.0.0-1014.14
kernel-headers - addressed in versions 5.10.0-318.0.0.221, 6.6.0-145.1.24.161, 6.6.0-145.3.29.160
linux-lowlatency (Ubuntu package) - addressed in versions 5.15.0.179.151, 5.15.0-179.189
linux-xilinx-zynqmp (Ubuntu package) - addressed in versions 5.15.0.1074.77, 5.15.0-1074.78
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0.1114.99, 5.15.0-1114.123+fips1, 5.15.0-1114.123~20.04.1
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1114.112, 5.15.0-1114.123, 7.0.0-1009.9, 7.0.0-1010.10
kernel-rt-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-kvmsmall-debuginfo - update to 6.4.0-49.1
kernel-kvmsmall-debugsource - update to 6.4.0-49.1
kernel-devel-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-source-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt-livepatch - update to 6.4.0-49.1
kernel-rt-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-64kb-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-64kb-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-obs-build - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-64kb - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-livepatch - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-kvmsmall - update to 6.4.0-49.1
kernel-rt-devel-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.62.1
dlm-kmp-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-syms-rt - update to 6.4.0-150700.7.62.1
kernel-azure - update to 6.4.0-150700.53.66.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.66.1
kernel-azure-debugsource - update to 6.4.0-150700.53.66.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.66.1
kernel-azure-devel - update to 6.4.0-150700.53.66.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.66.1
kernel-default-extra - update to 6.4.0-150700.53.66.1
reiserfs-kmp-default - update to 6.4.0-150700.53.66.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.66.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.66.1
kernel-zfcpdump - update to 6.4.0-150700.53.66.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.66.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.66.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.66.1
kernel-docs - update to 6.4.0-150700.53.66.2
kernel-extra-modules - update to 6.6.0-145.3.29.160
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1025.25
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1026.26
linux (Ubuntu package) - update to 7.0.0-27.27
linux-nvidia (Ubuntu package) - update to 7.0.0-1013.13

External References

Related Security Bulletins