Linux Distros Unpatched Vulnerability : CVE-2021-47222

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: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone...

SUSE SLES12 Security Update : kernel (SUSE-SU-2025:0565-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0565-1 advisory. The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes. The following security bugs were fixed: -...

SUSE: Security Advisory (SUSE-SU-2025:0565-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2024-2394)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2024-2441)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It...

CVE-2021-47222 net: bridge: fix vlan tunnel dst refcnt when egressing

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It...

CVE-2021-47222

The CVE-2021-47222 issue is a Linux kernel vulnerability in the bridge vlan tunneling path where egress code used dst_clone() and set the result directly, risking invalid refcnt (entry can have 0 refcnt or be deleted) and triggering dst_hold()/dst_release underflow (as seen in dst_release: refcnt...