Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net: dsa: clean up FDB, MDB, and VLAN entries after unbinding. As explained in many places, such as commit b117e1e8a86d “net: dsa: delete dsalegacyfdbadd and dsalegacyfdbdel”, DSA is written under the assumption that higher layer...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: vxlan: Annotate FDB data races The “used” and “updated” fields in the FDB entry structure can be accessed concurrently by multiple threads, leading to issues such as reported cases like 1. These issues can be reproduced using ...

SUSE CVE-2025-37921

In the Linux kernel, the following vulnerability has been resolved: vxlan: vnifilter: Fix unlocked deletion of default FDB entry When a VNI is deleted from a VXLAN device in 'vnifilter' mode, the FDB entry associated with the default remote assuming one was configured is deleted without holding t...

DEBIAN-CVE-2025-37921

In the Linux kernel, the following vulnerability has been resolved: vxlan: vnifilter: Fix unlocked deletion of default FDB entry When a VNI is deleted from a VXLAN device in 'vnifilter' mode, the FDB entry associated with the default remote assuming one was configured is deleted without holding t...

UBUNTU-CVE-2025-37921

In the Linux kernel, the following vulnerability has been resolved: vxlan: vnifilter: Fix unlocked deletion of default FDB entry When a VNI is deleted from a VXLAN device in 'vnifilter' mode, the FDB entry associated with the default remote assuming one was configured is deleted without holding t...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the vxlan module not locking when deleting default FDB entries, which could lead to data contention...

SUSE CVE-2025-37864

In the Linux kernel, the following vulnerability has been resolved: net: dsa: clean up FDB, MDB, VLAN entries on unbind As explained in many places such as commit b117e1e8a86d "net: dsa: delete dsalegacyfdbadd and dsalegacyfdbdel", DSA is written given the assumption that higher layers have...

DEBIAN-CVE-2025-37864

In the Linux kernel, the following vulnerability has been resolved: net: dsa: clean up FDB, MDB, VLAN entries on unbind As explained in many places such as commit b117e1e8a86d "net: dsa: delete dsalegacyfdbadd and dsalegacyfdbdel", DSA is written given the assumption that higher layers have...

UBUNTU-CVE-2025-37864

In the Linux kernel, the following vulnerability has been resolved: net: dsa: clean up FDB, MDB, VLAN entries on unbind As explained in many places such as commit b117e1e8a86d "net: dsa: delete dsalegacyfdbadd and dsalegacyfdbdel", DSA is written given the assumption that higher layers have...

PT-2025-20514

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the cleanup of FDB, MDB, and VLAN entries on unbind. The issue arises from the assumption that higher layers have balanc...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to clean up FDB and MDB entries when the dsa driver is unbundled, which could lead to a resource...

PT-2025-22183

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the deletion of a default FDB entry in 'vnifilter' mode when a VNI is deleted from a VXLAN device. This issue results in...

The vulnerability of the mlx5_eswitch_offloads_single_fdb_add_one() function in the drivers/net/ethernet/mellanox/mlx5/core/eswitch.h module of the Linux kernel allows a hacker to cause a service failure.

The vulnerability of the mlx5eswitchoffloadssinglefdbaddone function in the drivers/net/ethernet/mellanox/mlx5/core/eswitch.h module of the Linux kernel is related to insufficient resource locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

PT-2025-25812

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the fixed version Description The issue is related to data races in the vxlan module of the Linux kernel. Specifically, the used and updated fields in the FDB entry structure can be accessed concurrently by...

kernel: netlink: do not hard code device address lenth in fdb dumps

A kernel information leak vulnerability was found in the netlink FDB Forwarding Database dump functionality in the Linux kernel. The code incorrectly hard-codes ETHALEN 6 bytes for device addresses, but some network devices have shorter addresses e.g., 4 bytes. When dumping FDB entries for such...