Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: removed WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g., AFPACKET sockets when sending packets via raw/packet sockets over virtual devices such as VRF or ipvlan. In such...

net: remove WARN_ON_ONCE() from sk_mc_loop()

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Linux Distros Unpatched Vulnerability : CVE-2026-80733

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via...

SUSE CVE-2026-80733

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

AZL-99048 CVE-2026-80733 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

UBUNTU-CVE-2026-80733

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733 net: remove WARN_ON_ONCE() from sk_mc_loop()

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733

CVE-2026-80733 affects the Linux kernel 's sk_mc_loop() networking function. When called for non-INET sockets—such as AF_PACKET sockets sending packets over virtual devices like VRF or ipvlan —the function falls through its switch statement and triggers a spurious WARN_ON_ONCE(1) . Since non-INET...

EUVD-2026-70337

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733 net: remove WARN_ON_ONCE() from sk_mc_loop()

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

PT-2026-84931

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sk mc loop function where it can be called for sockets that are neither AF INET nor AF INET6, such as AF PACKET sockets used when sending packets via raw/packet...

The vulnerability of the sk_mc_loop() function in the net/core/sock.c module exposes the support for networking functions in the Linux kernel, allowing attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the skmcloop function in the net/core/sock.c module related to Linux kernel network functions is associated with improper disabling or release of resources. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011190)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011190 advisory. In the Linux kernel, the following vulnerability has been resolved: net: read sk-skfamily once in skmcloop syzbot is playing with IPV6ADDRFORM quite a lot these days...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992755)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992755 advisory. In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb-sk in ipvlanprocessv4,6outbound Raw packet from PFPACKET socket ontop of an...

CVE-2023-53831

A data race was found in the Linux kernel's networking stack. The skmcloop function reads sk-skfamily without proper synchronization while another thread may be changing it via IPV6ADDRFORM socket option. This race can cause the function to take an unexpected code path, triggering a WARNONONCE or...

SUSE CVE-2023-53831

In the Linux kernel, the following vulnerability has been resolved: net: read sk-skfamily once in skmcloop syzbot is playing with IPV6ADDRFORM quite a lot these days, and managed to hit the WARNONONCE1 in skmcloop We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at...

EUVD-2023-60165

In the Linux kernel, the following vulnerability has been resolved: net: read sk-skfamily once in skmcloop syzbot is playing with IPV6ADDRFORM quite a lot these days, and managed to hit the WARNONONCE1 in skmcloop We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at...