Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: pm: in-kernel: always marking signal+subflow endp as used Syzkaller managed to find a combination of actions that caused this warning to occur: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

SUSE CVE-2026-23321

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

CVE-2026-23321

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

CVE-2026-23321

CVE-2026-23321 relates to the Linux kernel MPTCP subsystem (mptcp: pm: in-kernel: always mark signal+subflow endp as used). The vulnerability was addressed in the upstream kernel by patching endp handling in the PM code, reducing warning/usage inconsistencies when signaling ADD_ADDRs and subflows...

CVE-2026-23321

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

CVE-2026-23321 mptcp: pm: in-kernel: always mark signal+subflow endp as used

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

CVE-2026-23321 mptcp: pm: in-kernel: always mark signal+subflow endp as used

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

CVE-2026-23321

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always mark signal+subflow endp as used Syzkaller managed to find a combination of actions that was generating this warning: msk-pm.localaddrused == 0 WARNING: net/mptcp/pmkernel.c:1071 at...

PT-2026-27686

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.19.0-08368-gfafda3b4b06b 22 Description The Linux kernel contains a flaw related to MPTCP Multipath TCP path management. A specific sequence of actions, involving setting the MPTCP subflows limit to zero,...

kernel: mptcp: pm: only mark 'subflow' endp as available

A flaw was found in the Linux kernel's Multipath TCP MPTCP Path Manager. When a 'signal' endpoint is removed, the localaddrused counter is incorrectly decremented, even though this counter is intended for 'subflow' endpoints. This miscounting can lead to an inconsistent state in the MPTCP Path...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In mptcp, only the ‘subflow’ endpoint is marked as available. The following warning has been added: WARNONONCEmsk-pm.localaddrused == 0 Adding this warning before decrementing the localaddrused counter helped to identify a bug wh...

mptcp: pm: only mark 'subflow' endp as available

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SUSE CVE-2024-45010

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARNONONCEmsk-pm.localaddrused == 0 ... before decrementing the localaddrused counter helped to find a bug when running the "remove single address"...

AZL-49263 CVE-2024-45010 affecting package kernel for versions less than 6.6.51.1-1

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARNONONCEmsk-pm.localaddrused == 0 ... before decrementing the localaddrused counter helped to find a bug when running the "remove single address"...

AZL-49182 CVE-2024-45010 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARNONONCEmsk-pm.localaddrused == 0 ... before decrementing the localaddrused counter helped to find a bug when running the "remove single address"...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a subflow endpoint tagging issue in the mptcp:pm component...