CVE-2026-98301

The Linux kernel contains a vulnerability in the net: bridge: mst component where the br_mst_set_state() function calls switchdev_port_attr_set() while holding an rcu_read_lock() . This is problematic because the switchdev notifier chain can invoke blocking calls and sleep. The issue is triggered...

EUVD-2026-93286

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: move switchdev call outside rcu This is a follow-up of one of sashiko's pre-existing bug reports. brmstsetstate calls switchdevportattrset for nonzero MSTIs while holding rcureadlock which invokes the blocking...

CVE-2026-98301

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: move switchdev call outside rcu This is a follow-up of one of sashiko's pre-existing bug reports. brmstsetstate calls switchdevportattrset for nonzero MSTIs while holding rcureadlock which invokes the blocking...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: bridge: mst: fix vlan use-after-free The syzbot reported a suspicious RCU usage1 in the mst code of bridge. While fixing this issue, I noticed that nothing prevents vlan information from being freed while walking the list...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Networks: Bridge: MST: Fixed suspicious RCU usage in brmstsetstate. I converted brmstsetstate to RCU to avoid a vlan use-after-free, but I forgot to change the vlangroupdereferencehelper. I switched to using the...

Linux Distros Unpatched Vulnerability : CVE-2024-40921

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to brmstvlansetstate Pass the already obtained vl...

Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506008 fixes several issues. The following security issues were fixed: CVE-2024-40921: net: bridge: mst: pass vlan group directly to brmstvlansetstate bsc1227784. CVE-2024-40920: net: bridge: mst: fix suspicious rcu usage in brmstsetstate bsc1227781...

kernel: net: bridge: mst: fix vlan use-after-free

A use-after-free flaw was found in net/bridge/brmst.c in the Linux kernel. This issue may lead to compromised Confidentiality and Integrity, and can crash...

kernel: net: bridge: mst: fix vlan use-after-free

A use-after-free flaw was found in net/bridge/brmst.c in the Linux kernel. This issue may lead to compromised Confidentiality and Integrity, and can crash...

SUSE CVE-2024-40920

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

SUSE CVE-2024-40921

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to brmstvlansetstate Pass the already obtained vlan group pointer to brmstvlansetstate instead of dereferencing it again. Each caller has already correctly dereferenced it for their...

DEBIAN-CVE-2024-40921

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to brmstvlansetstate Pass the already obtained vlan group pointer to brmstvlansetstate instead of dereferencing it again. Each caller has already correctly dereferenced it for their...

DEBIAN-CVE-2024-40920

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

CVE-2024-40921

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to brmstvlansetstate Pass the already obtained vlan group pointer to brmstvlansetstate instead of dereferencing it again. Each caller has already correctly dereferenced it for their...

UBUNTU-CVE-2024-40920

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

CVE-2024-40920 net: bridge: mst: fix suspicious rcu usage in br_mst_set_state

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

CVE-2024-40920

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from the net:bridge:mst component passing the VLAN group pointer directly in the brmstvlansetstate function instead of dereferencing it agai...

CVE-2024-40920: Use After Free

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in brmstsetstate I converted brmstsetstate 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...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a questionable RCU usage in the net:bridge:mst component in the brmstsetstate function...