CVE-2024-44937 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2024-44937 Interim 1 9 2025-08-06T00:17:16Z current 2024-08-27T23:10:00Z 2025-08-06T00:17:16Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2024-44937 In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-vbtn: Protect ACPI notify handler against recursion Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs") ACPI notify handlers like the intel-vbtn notify_handler() may run on multiple CPU cores racing with themselves. This race gets hit on Dell Venue 7140 tablets when undocking from the keyboard, causing the handler to try and register priv->switches_dev twice, as can be seen from the dev_info() message getting logged twice: [ 83.861800] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event [ 83.861858] input: Intel Virtual Switches as /devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17 [ 83.861865] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event After which things go seriously wrong: [ 83.861872] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17' ... [ 83.861967] kobject: kobject_add_internal failed for input17 with -EEXIST, don't try to register things with the same name in the same directory. [ 83.877338] BUG: kernel NULL pointer dereference, address: 0000000000000018 ... Protect intel-vbtn notify_handler() from racing with itself with a mutex to fix this. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Development Tools 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Development Tools 15 SP7 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Public Cloud 15 SP5 SUSE Linux Enterprise Module for 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a component of openSUSE Leap 15.5 kernel-default-livepatch as a component of openSUSE Leap 15.5 kernel-default-livepatch-devel as a component of openSUSE Leap 15.5 kernel-default-optional as a component of openSUSE Leap 15.5 kernel-default-vdso as a component of openSUSE Leap 15.5 kselftests-kmp-default as a component of openSUSE Leap 15.5 ocfs2-kmp-default as a component of openSUSE Leap 15.5 reiserfs-kmp-default as a component of openSUSE Leap 15.5 kernel-devel as a component of openSUSE Leap 15.5 kernel-macros as a component of openSUSE Leap 15.5 kernel-source as a component of openSUSE Leap 15.5 kernel-source-vanilla as a component of openSUSE Leap 15.5 kernel-devel-azure as a component of openSUSE Leap 15.5 kernel-source-azure as a component of openSUSE Leap 15.5 kernel-devel-rt as a component of openSUSE Leap 15.5 kernel-source-rt as a component of openSUSE Leap 15.5 cluster-md-kmp-default as a component of openSUSE Leap 15.6 dlm-kmp-default as a component of openSUSE Leap 15.6 gfs2-kmp-default as a component of openSUSE Leap 15.6 kernel-default as a component of openSUSE Leap 15.6 kernel-default-devel as a component of openSUSE Leap 15.6 kernel-default-extra as a component of openSUSE Leap 15.6 kernel-default-livepatch as a component of openSUSE Leap 15.6 kernel-default-livepatch-devel as a component of openSUSE Leap 15.6 kernel-default-optional as a component of openSUSE Leap 15.6 kernel-default-vdso as a component of openSUSE Leap 15.6 kselftests-kmp-default as a component of openSUSE Leap 15.6 ocfs2-kmp-default as a component of openSUSE Leap 15.6 reiserfs-kmp-default as a component of openSUSE Leap 15.6 kernel-devel as a component of openSUSE Leap 15.6 kernel-macros as a component of openSUSE Leap 15.6 kernel-source as a component of openSUSE Leap 15.6 kernel-source-vanilla as a component of openSUSE Leap 15.6 kernel-devel-azure as a component of openSUSE Leap 15.6 kernel-source-azure as a component of openSUSE Leap 15.6 kernel-devel-rt as a component of openSUSE Leap 15.6 kernel-source-rt as a component of openSUSE Leap 15.6 In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-vbtn: Protect ACPI notify handler against recursion Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs") ACPI notify handlers like the intel-vbtn notify_handler() may run on multiple CPU cores racing with themselves. This race gets hit on Dell Venue 7140 tablets when undocking from the keyboard, causing the handler to try and register priv->switches_dev twice, as can be seen from the dev_info() message getting logged twice: [ 83.861800] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event [ 83.861858] input: Intel Virtual Switches as /devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17 [ 83.861865] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event After which things go seriously wrong: [ 83.861872] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17' ... [ 83.861967] kobject: kobject_add_internal failed for input17 with -EEXIST, don't try to register things with the same name in the same directory. [ 83.877338] BUG: kernel NULL pointer dereference, address: 0000000000000018 ... Protect intel-vbtn notify_handler() from racing with itself with a mutex to fix this. CVE-2024-44937 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-64kb-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-64kb-devel-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-default-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-default-devel-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-devel-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-macros-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:kernel-zfcpdump-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-docs-6.4.0-150700.51.2 SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-obs-build-6.4.0-150700.51.2 SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-source-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Development Tools 15 SP7:kernel-syms-6.4.0-150700.51.1 SUSE Linux Enterprise Module for Legacy 15 SP7:reiserfs-kmp-default-6.4.0-150700.51.1 SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-default SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-source SUSE Linux Enterprise High Performance Computing 12 SP5:kernel-source-azure SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-default SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-default-devel SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-devel SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-macros SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:kernel-source SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:kernel-default SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:kernel-default-devel SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:kernel-devel SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:kernel-macros SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:kernel-source SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:reiserfs-kmp-default SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:kernel-default SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:kernel-default-devel SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:kernel-devel SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:kernel-macros SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:kernel-source SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:reiserfs-kmp-default SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:kernel-default SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:kernel-default-devel SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:kernel-devel SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:kernel-macros SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:kernel-source SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:reiserfs-kmp-default SUSE Linux Enterprise Micro 5.0:kernel-default SUSE Linux Enterprise Micro 5.1:kernel-default SUSE Linux Enterprise Micro 5.1:kernel-rt SUSE Linux Enterprise Micro 5.1:kernel-source-rt SUSE Linux Enterprise Micro 5.2:kernel-default SUSE Linux Enterprise Micro 5.2:kernel-rt SUSE Linux Enterprise Micro 5.2:kernel-source-rt SUSE Linux Enterprise Micro 5.3:kernel-default SUSE Linux Enterprise Micro 5.3:kernel-rt SUSE Linux Enterprise Micro 5.3:kernel-source-rt SUSE Linux Enterprise Micro 5.4:kernel-default SUSE Linux Enterprise Micro 5.4:kernel-rt SUSE Linux Enterprise Micro 5.4:kernel-source-rt SUSE Linux Enterprise Micro 5.5:kernel-devel-rt SUSE Linux Enterprise Micro 5.5:kernel-source-rt SUSE Linux Enterprise Module for Basesystem 15 SP5:kernel-default SUSE Linux Enterprise Module for Basesystem 15 SP5:kernel-default-devel SUSE Linux Enterprise Module for Basesystem 15 SP5:kernel-devel SUSE Linux Enterprise Module for Basesystem 15 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