CVE-2025-40204
NoneCVSS
—
EPSS
0.5%
Published
Nov 12, 2025
CISA due date
—
The record
In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Linux | Kernel | 2.6.12 | 5.4.301 |
| SUSE:Linux Enterprise High Availability Extension 15 SP6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-default-base | 0 | 5.14.21-150500.55.130.3.150500.6.63.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-64kb | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-default-base | 0 | 5.14.21-150500.55.130.3.150500.6.63.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-docs | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-obs-build | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-source | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-syms | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_34 | 0 | 19-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_35 | 0 | 18-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_36 | 0 | 13-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_40 | 0 | 12-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_44 | 0 | 6-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_21 | 0 | 17-150500.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_23 | 0 | 13-150500.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_33 | 0 | 1-150500.11.3.3 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_18 | 0 | 1-150600.1.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_14 | 0 | 5-150600.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_18 | 0 | 1-150600.13.3.3 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_1 | 0 | 9-150700.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_5 | 0 | 2-150700.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_3 | 0 | 5-150700.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_4 | 0 | 5-150700.2.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-rt | 0 | 5.3.18-150300.229.2 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-source-rt | 0 | 5.3.18-150300.229.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-rt | 0 | 5.14.21-150400.15.139.2 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-source-rt | 0 | 5.14.21-150400.15.139.1 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-rt | 0 | 5.14.21-150400.15.139.2 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-source-rt | 0 | 5.14.21-150400.15.139.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | 0 | 5.14.21-150500.55.130.3.150500.6.63.3 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-rt | 0 | 5.14.21-150500.13.115.2 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source-rt | 0 | 5.14.21-150500.13.115.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-64kb | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | 0 | 6.4.0-150600.23.81.3.150600.12.36.3 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | 0 | 6.4.0-150600.23.81.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-zfcpdump | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-docs | 0 | 6.4.0-150600.23.81.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-obs-build | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | 0 | 6.4.0-150600.23.81.2 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-syms | 0 | 6.4.0-150600.23.81.1 |
| SUSE:Linux Enterprise Module for Legacy 15 SP6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | kernel-azure | 0 | 6.4.0-150600.8.58.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | 0 | 6.4.0-150600.8.58.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | kernel-syms-azure | 0 | 6.4.0-150600.8.58.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-64kb | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-default-base | 0 | 5.14.21-150500.55.130.3.150500.6.63.3 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-docs | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-obs-build | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-source | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-syms | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-zfcpdump | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default-base | 0 | 5.14.21-150500.55.130.3.150500.6.63.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-docs | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-obs-build | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | 0 | 5.14.21-150500.55.130.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | kernel-syms | 0 | 5.14.21-150500.55.130.1 |
| SUSE:Linux Enterprise Workstation Extension 15 SP6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| SUSE:Real Time Module 15 SP6 | kernel-rt | 0 | 6.4.0-150600.10.61.1 |
| SUSE:Real Time Module 15 SP6 | kernel-rt_debug | 0 | 6.4.0-150600.10.61.1 |
| SUSE:Real Time Module 15 SP6 | kernel-source-rt | 0 | 6.4.0-150600.10.61.1 |
| SUSE:Real Time Module 15 SP6 | kernel-syms-rt | 0 | 6.4.0-150600.10.61.1 |
| openSUSE:Leap 15.6 | dtb-aarch64 | 0 | 6.4.0-150600.23.81.1 |
| openSUSE:Leap 15.6 | kernel-64kb | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 15.6 | kernel-azure | 0 | 6.4.0-150600.8.58.1 |
| openSUSE:Leap 15.6 | kernel-debug | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 15.6 | kernel-default | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 15.6 | kernel-default-base | 0 | 6.4.0-150600.23.81.3.150600.12.36.3 |
| openSUSE:Leap 15.6 | kernel-docs | 0 | 6.4.0-150600.23.81.1 |
| openSUSE:Leap 15.6 | kernel-kvmsmall | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 15.6 | kernel-obs-build | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 15.6 | kernel-obs-qa | 0 | 6.4.0-150600.23.81.1 |
| openSUSE:Leap 15.6 | kernel-rt | 0 | 6.4.0-150600.10.61.1 |
| openSUSE:Leap 15.6 | kernel-rt_debug | 0 | 6.4.0-150600.10.61.1 |
| openSUSE:Leap 15.6 | kernel-source | 0 | 6.4.0-150600.23.81.2 |
| openSUSE:Leap 15.6 | kernel-source-azure | 0 | 6.4.0-150600.8.58.1 |
| openSUSE:Leap 15.6 | kernel-source-rt | 0 | 6.4.0-150600.10.61.1 |
| openSUSE:Leap 15.6 | kernel-syms | 0 | 6.4.0-150600.23.81.1 |
| openSUSE:Leap 15.6 | kernel-syms-azure | 0 | 6.4.0-150600.8.58.1 |
| openSUSE:Leap 15.6 | kernel-syms-rt | 0 | 6.4.0-150600.10.61.1 |
| openSUSE:Leap 15.6 | kernel-zfcpdump | 0 | 6.4.0-150600.23.81.3 |
| openSUSE:Leap 16.0 | dtb-aarch64 | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-64kb | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-default | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-default-base | 0 | 6.12.0-160000.8.1.160000.2.5 |
| openSUSE:Leap 16.0 | kernel-docs | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-kvmsmall | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-obs-build | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-obs-qa | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-rt | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-source | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-syms | 0 | 6.12.0-160000.8.1 |
| openSUSE:Leap 16.0 | kernel-zfcpdump | 0 | 6.12.0-160000.8.1 |
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