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...

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...

CVE-2026-98301 net: bridge: mst: move switchdev call outside rcu

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-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...

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...

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...

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...

CVE-2024-40921: Undefined Security Weakness

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...

CVE-2024-36979 net: bridge: mst: fix vlan use-after-free

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix vlan use-after-free syzbot reported a suspicious rcu usage1 in bridge's mst code. While fixing it I noticed that nothing prevents a vlan to be freed while walking the list from the same path br forward delay...

CVE-2024-36979 net: bridge: mst: fix vlan use-after-free

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix vlan use-after-free syzbot reported a suspicious rcu usage1 in bridge's mst code. While fixing it I noticed that nothing prevents a vlan to be freed while walking the list from the same path br forward delay...

CVE-2024-36979: Use After Free

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix vlan use-after-free syzbot reported a suspicious rcu usage1 in bridge's mst code. While fixing it I noticed that nothing prevents a vlan to be freed while walking the list from the same path br forward delay...