CVE-2026-97566

The Linux kernel contains a vulnerability in the in-kernel MPTCP path manager where removing the id 0 endpoint fails to tear down pending announcements. This asymmetry between the id 0 path and non-zero id paths leaves a stale ADD_ADDR announcement entry alive. When the path manager later reselec...

CVE-2026-97566 mptcp: pm: kernel: drop pending ADD_ADDR when removing ID0

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: kernel: drop pending ADDADDR when removing ID0 The in-kernel MPTCP path manager can leave a stale ADDADDR announcement entry alive when removing the id 0 endpoint. This happens because the id 0 removal path does not te...

SUSE CVE-2026-89554

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix uninitialized localid in syncookie MPJOIN reconstruction mptcptokenjoincookieinitstate restores remotenonce, localnonce, backup, joinid, token and msk from the saved cookie entry when rebuilding the request socket for ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only set fullmesh for subflow endp With the in-kernel path-manager, it is possible to change the ‘fullmesh’ flag. The code in mptcppmnlfullmesh expects to change this flag only on ‘subflow’ endpoints, in order to...

CVE-2026-80784

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: fix memory leak from alloc-during-teardown race mptcppmdestroy empties msk-pm.annolist and msk-pm.userspacepmlocaladdrlist under msk-pm.lock during socket teardown, dropping the lock between the two. A concurrent...

Directory Traversal

Overview Jellyfin.Common is an a Free Software Media System that puts you in control of managing and streaming your media. Affected versions of this package are vulnerable to Directory Traversal via the PathManager.GetAttachmentPath process. An attacker can achieve remote code execution by crafti...

mptcp: pm: ADD_ADDR rtx: free sk if last

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mptcp: pm: ADD_ADDR rtx: always decrease sk refcount

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CVE-2026-46158

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADDADDR rtx: always decrease sk refcount When an ADDADDR is retransmitted, the sk is held in skresettimer. It should then be released in all cases at the end. Some unlikely checks were returning directly instead of...

EUVD-2026-27811

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: in-kernel: always set ID as avail when rm endp Syzkaller managed to find a combination of actions that was generating this warning: WARNING: net/mptcp/pmkernel.c:1074 at marksubflowendpavailable net/mptcp/pmkernel.c:10...

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 the mptcp kernel path manager not always setting IDs as available when deleting endpoints, potentially...

EUVD-2026-15272

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...

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...

SUSE CVE-2025-21706

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only set fullmesh for subflow endp With the in-kernel path-manager, it is possible to change the 'fullmesh' flag. The code in mptcppmnlfullmesh expects to change it only on 'subflow' endpoints, to recreate more or less...

CVE-2025-21706

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only set fullmesh for subflow endp With the in-kernel path-manager, it is possible to change the 'fullmesh' flag. The code in mptcppmnlfullmesh expects to change it only on 'subflow' endpoints, to recreate more or less...

DEBIAN-CVE-2025-21706

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only set fullmesh for subflow endp With the in-kernel path-manager, it is possible to change the 'fullmesh' flag. The code in mptcppmnlfullmesh expects to change it only on 'subflow' endpoints, to recreate more or less...

UBUNTU-CVE-2025-21706

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only set fullmesh for subflow endp With the in-kernel path-manager, it is possible to change the 'fullmesh' flag. The code in mptcppmnlfullmesh expects to change it only on 'subflow' endpoints, to recreate more or less...