PT-2026-96549

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix uninitialized local id in syncookie MP JOIN reconstruction mptcp token join cookie init state restores remote nonce, local nonce, backup, join id, token and msk from the saved cookie entry when rebuilding the request...

bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie

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Linux Distros Unpatched Vulnerability : CVE-2026-80738

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type...

SUSE CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

UBUNTU-CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

EUVD-2026-70342

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738 bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80738 bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

PT-2026-84936

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The bpf tcp gen syncookie and bpf tcp check syncookie functions accept a socket pointer sk with the argument type ARG PTR TO BTF ID SOCK COMMON. The issue occurs because these functions...

PT-2026-90893

In the Linux kernel, the following vulnerability has been resolved: bpf: Check sk state before sk protocol in bpf tcp syncookie bpf tcp gen syncookie and bpf tcp check syncookie accept a socket pointer 'sk' with argument type ARG PTR TO BTF ID SOCK COMMON. However, they access sk-sk protocol...

F5 BIG-IP 代码问题漏洞

F5 BIG-IP is an application delivery platform from F5 that integrates network traffic orchestration, load balancing, intelligent DNS, remote access policy management, etc. A denial of service vulnerability exists in the F5 BIG-IP DNS profile, where the Rapid Response Mode RRM setting is turned on...

F5 Networks BIG-IP : F5 TMM vulnerability (K05204103)

An early syncookie leaks forwarding flows if the virtual server has Clustered Multiprocessing CMPdisabled and the BIG-IP AFM module is provisioned.CVE-2020-5950 Impact The BIG-IP system resources may be excessively consumed and potentially leadto a failover event.Traffic processing is disrupted...

F5 Networks BIG-IP : TMM vulnerability (K82851041)

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, PSM, WebAccelerator, and WebSafe 11.6.1 HF1, 12.0.0 HF3, 12.0.0 HF4, and 12.1.0 through 12.1.2, undisclosed traffic patterns received while software SYN cookie protection is engaged may cause a disrupti...

SOL35358312 - TCP vulnerability CVE-2015-8099

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

FreeBSD Security Advisory (FreeBSD-SA-02:20.syncache.asc)

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-02:20.syncache.asc SPDX-FileCopyrightText: 2008 E-Soft Inc. Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders...

CVE-2002-0518: Undefined Security Weakness

The SYN cache syncache and SYN cookie syncookie mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service crash 1 via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or 2 by killing and...

[RHSA-2001:142-15] kernel 2.2 and 2.4: syncookie vulnerability

--------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: kernel 2.2 and 2.4: syncookie vulnerability Advisory ID: RHSA-2001:142-15 Issue date: 2001-10-26 Updated on: 2001-11-02 Product: Red Hat Linux Keywords: syncookie security kerne...