CVE-2026-23083

CVE-2026-23083 is a Linux kernel vulnerability affecting FOU (IPv4/IPv6 over UDP) handling, where setting FOU_ATTR_IPPROTO to 0 could leave the skb unfreed in fou_udp_recv() and not retried in ip_protocol_deliver_rcu(). The fix suppresses 0 for FOU_ATTR_IPPROTO and applies upstream patching to pr...

CVE-2026-23083 fou: Don't allow 0 for FOU_ATTR_IPPROTO.

In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOUATTRIPPROTO. fouudprecv has the same problem mentioned in the previous patch. If FOUATTRIPPROTO is set to 0, skb is not freed by fouudprecv nor "resubmit"-ted in ipprotocoldeliverrcu. Let's forbid 0 for...

CVE-2026-23083

In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOUATTRIPPROTO. fouudprecv has the same problem mentioned in the previous patch. If FOUATTRIPPROTO is set to 0, skb is not freed by fouudprecv nor "resubmit"-ted in ipprotocoldeliverrcu. Let's forbid 0 for...

CVE-2026-23083 fou: Don't allow 0 for FOU_ATTR_IPPROTO.

In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOUATTRIPPROTO. fouudprecv has the same problem mentioned in the previous patch. If FOUATTRIPPROTO is set to 0, skb is not freed by fouudprecv nor "resubmit"-ted in ipprotocoldeliverrcu. Let's forbid 0 for...

Linux Distros Unpatched Vulnerability : CVE-2026-23083

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fou: Don't allow 0 for FOUATTRIPPROTO. fouudprecv has the same problem mentioned in the previous patch. If FOUATTRIPPROTO is set to 0, skb is not freed by...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from allowing FOUATTRIPPROTO to be set to 0, potentially leading to packets not being released properly...

PT-2026-6153

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the fou module. Specifically, the FOU ATTR IPPROTO attribute should not be set to 0. When FOU ATTR IPPROTO is 0, the skb socket buffer is not...

OESA-2025-2887 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3-sva: Fix mm use-after-free We currently call arm64mmcontextput without holding a reference to the mm, which can result in use-after-free. Call...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-395260)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-395260 advisory. In the Linux kernel, the following vulnerability has been resolved: fou: Fix null-ptr-deref in GRO. We observed a null-ptr-deref in fougroreceive while shutting down...

SUSE-SU-2025:01640-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-48933: netfilter: nftables: fix memory leak during stateful obj update bsc1229621. - CVE-2022-49110: netfilter: conntrack: revisit gc autotuning...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: “fou”: removed the warning in guegroreceive for unsupported protocols. The warning for guegroreceive is removed if the encapsulated type is unknown or does not have a GRO handler. Such packets can be easily constructed. The Syzbo...

Azure Linux 3.0 Security Update: kernel (CVE-2024-46763)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-46763 advisory. - In the Linux kernel, the following vulnerability has been resolved: fou: Fix null-ptr-deref in GRO. We...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use CVE-2024-26921 In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: walk over current view on netlink dump...

The vulnerability of the gue_gro_receive() function in the IPv4 implementation of the Linux operating system’s kernel allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the guegroreceive function in the net/ipv4/foucore.c module of the Linux operating system’s IPv4 kernel implementation is related to incorrect validation of input data. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

The vulnerability of the gue_gro_receive() function in the IPv4 implementation of the Linux operating system’s kernel allows a attacker to compromise the confidentiality and accessibility of the protected information.

The vulnerability of the guegroreceive function in the net/ipv4/foucore.c module, which is part of the Linux operating system’s IPv4 kernel implementation, relates to the use of an uninitialized variable. Exploiting this vulnerability could allow an attacker to compromise the confidentiality and...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2024-071 (ALASKERNEL-5.10-2024-071)

The version of kernel installed on the remote host is prior to 5.10.225-213.878. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2024-071 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: don't allow mapping the...

CLSA-2024-1727817758 Fix of 74 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-26752 - l2tp: pass correct message length to ip6appenddata CVE-url: https://ubuntu.com/security/CVE-2021-47188 - scsi: ufs: core: Improve SCSI abort handling CVE-url: https://ubuntu.com/security/CVE-2024-26677 - rxrpc: Fix delayed ACKs to not set the...

SUSE CVE-2024-46865

In the Linux kernel, the following vulnerability has been resolved: fou: fix initialization of grc The grc must be initialize first. There can be a condition where if fou is NULL, goto out will be executed and grc would be used uninitialized...

CVE-2024-46865

In the Linux kernel, the following vulnerability has been resolved: fou: fix initialization of grc The grc must be initialize first. There can be a condition where if fou is NULL, goto out will be executed and grc would be used uninitialized...

DEBIAN-CVE-2024-46865

In the Linux kernel, the following vulnerability has been resolved: fou: fix initialization of grc The grc must be initialize first. There can be a condition where if fou is NULL, goto out will be executed and grc would be used uninitialized...