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...

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

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...

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

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...

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...

DEBIAN-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"...

UBUNTU-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"...

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"...

PT-2024-31363

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to the Linux kernel's handling of 'subflow' endpoints in the mptcp module. When a 'signal' endpoint is removed, it triggers the removal of all linked subflows via th...