CVE-2025-39851 vxlan: Fix NPD when refreshing an FDB entry with a nexthop object

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD when refreshing an FDB entry with a nexthop object VXLAN FDB entries can point to either a remote destination or an FDB nexthop group. The latter is usually used in EVPN deployments where learning is disabled...

CVE-2025-39851

CVE-2025-39851 affects the Linux kernel vxlan implementation. When learning is enabled, a packet may refresh an FDB entry that points to an FDB nexthop group but has no remote, causing a NULL pointer dereference (NPD). The fix drops such packets earlier (before dereferencing a remote) and removes...

CVE-2025-39851 vxlan: Fix NPD when refreshing an FDB entry with a nexthop object

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD when refreshing an FDB entry with a nexthop object VXLAN FDB entries can point to either a remote destination or an FDB nexthop group. The latter is usually used in EVPN deployments where learning is disabled...

CVE-2025-39850 vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD in arp,neighreduce when using nexthop objects When the "proxy" option is enabled on a VXLAN device, the device will suppress ARP requests and IPv6 Neighbor Solicitation messages if it is able to reply on behalf of...

CVE-2025-39850 vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD in arp,neighreduce when using nexthop objects When the "proxy" option is enabled on a VXLAN device, the device will suppress ARP requests and IPv6 Neighbor Solicitation messages if it is able to reply on behalf of...

CVE-2025-39850

CVE-2025-39850 affects the Linux kernel vxlan implementation. When the VXLAN device runs with the proxy option enabled, ARP/IPv6 Neighbor Solicitation can be spuriously suppressed if the remote host’s MAC is not behind the any remote. The root cause is dereferencing an FDB nexthop entry that may ...

CVE-2025-39850 vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix NPD in arp,neighreduce when using nexthop objects When the "proxy" option is enabled on a VXLAN device, the device will suppress ARP requests and IPv6 Neighbor Solicitation messages if it is able to reply on behalf of...

Linux Distros Unpatched Vulnerability : CVE-2025-39850

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vxlan: Fix NPD in arp,neighreduce when using nexthop objects When the proxy option is enabled on a VXLAN device, the device will suppress ARP requests and IPv6...

SUSE CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

DEBIAN-CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

UBUNTU-CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405 net/tunnel: wait until all sk_user_data reader finish before releasing the sock

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405 net/tunnel: wait until all sk_user_data reader finish before releasing the sock

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405

CVE-2022-50405 affects the Linux kernel VXLAN path. A race in net/tunnel when deleting a vxlan device during packet reception could release the sock before sk_user_data readers finish, leading to a NULL pointer dereference in vxlan_ecn_decapsulate() / vxlan_get_sk_family(). The advisory notes thi...

CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

PT-2025-38422

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the VXLAN implementation when deleting a VXLAN device during packet reception. This can lead to a NULL pointer dereference within the vxlan ecn decapsulate...

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 not waiting for all skuserdata reads to complete when a vxlan device is deleted, which could result in a nul...

SUSE CVE-2023-53192

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix nexthop hash size The nexthop code expects a 31 bit hash, such as what is returned by fibmultipathhash and rt6multipathhash. Passing the 32 bit hash returned by skbgethash can lead to problems related to the fact that...