Unrated severityNVD Advisory· Published Jul 12, 2024· Updated Nov 3, 2025

net: bridge: mst: fix suspicious rcu usage in br_mst_set_state

CVE-2024-40920

Description

In the Linux kernel, the following vulnerability has been resolved:

I converted br_mst_set_state to RCU to avoid a vlan use-after-free but forgot to change the vlan group dereference helper. Switch to vlan group RCU deref helper to fix the suspicious rcu usage warning.

Affected products

osv-coords55 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_2&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0_Update_2&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_0&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_0&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_3&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 6.4.0-150600.23.22.1+ 54 more
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 8-150600.3.1
- (no CPE)range: < 7-150600.1.8.1
- (no CPE)range: < 1-150600.1.3.2
- (no CPE)range: < 9-150600.4.19.1
- (no CPE)range: < 7-150600.13.6.1
- (no CPE)range: < 7-150600.13.6.1
- (no CPE)range: < 7-150600.13.6.1
- (no CPE)range: < 1-150600.13.3.3
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 6.4.0-150600.23.22.1
Linux/Linuxcpe-rescue
Range: 6.1.93

Patches

546ceb1dfdac

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

406bfc04b01e

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

7caefa277172

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

caaa2129784a

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000