CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

UBUNTU-CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269 netfilter: synproxy: add mutex to guard hook reference counting

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269 netfilter: synproxy: add mutex to guard hook reference counting

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269

The CVE-2026-53269 issue exists in the Linux kernel’s netfilter synproxy path, where concurrent registration of hooks could race, affecting refcount blocks. A mutex was added to serialize access to refcount control blocks in frontends, mitigating the race. Connected OSV entries report patches for...

EUVD-2026-39220

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

PT-2026-52364

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the netfilter synproxy infrastructure. This occurs because netfilter hooks are registered on-demand when a user adds the first iptables target or nftables...

CVE-2026-53269: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referring to a synproxy stateful object from the OUTPUT hook causes the kernel to crash due to infinite recursive calls: BUG: The TASK stack guard page was accessed ...

SUSE CVE-2025-40206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

EUVD-2025-150368

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

Linux Distros Unpatched Vulnerability : CVE-2025-40206

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite...

CVE-2025-40206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

DEBIAN-CVE-2025-40206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

AZL-70100 CVE-2025-40206 affecting package kernel for versions less than 6.6.117.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

UBUNTU-CVE-2025-40206

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftobjref: validate objref and objrefmap expressions Referencing a synproxy stateful object from OUTPUT hook causes kernel crash due to infinite recursive calls: BUG: TASK stack guard page was hit at 000000008bda5b8c...

CVE-2025-40206

The CVE-2025-40206 issue affects the Linux kernel netfilter NFT_OBJREF handling. It describes a vulnerability where referencing a synproxy stateful object from the OUTPUT hook can cause infinite recursive calls, leading to a kernel crash. The root cause is related to validating objref and objrefm...