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

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...

MPTCP Protocol CVE

The vulnerabilities of the functions mptcpsendmsgfrag and mptcpsubflowgetsend in the net/mptcp/protocol.c module of the Linux operating system’s MPTCP implementation are related to insufficient resource locking. Exploiting these vulnerabilities could allow an attacker to compromise the...

Azure Linux 3.0 Security Update: kernel (CVE-2025-23145)

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-2025-23145 advisory. - In the Linux kernel, the following vulnerability has been resolved: mptcp: fix NULL pointer in...

Azure Linux 3.0 Security Update: kernel (CVE-2024-46711)

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-2024-46711 advisory. - In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: fix ID 0 endp usage after...

Azure Linux 3.0 Security Update: kernel (CVE-2024-45010)

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-2024-45010 advisory. - In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as...

SUSE CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

UBUNTU-CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144 mptcp: ensure context reset on disconnect()

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144 mptcp: ensure context reset on disconnect()

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144

The CVE-2025-71144 issue is in the Linux kernel’s MPTCP code path, where after a commit, if the MPC subflow is already TCP_CLOSE or falls back to TCP, mptcp_do_fastclose() may skip setting the send_fastclose flag, causing __mptcp_close_ssk() to stop resetting the subflow context. Consequently, a ...

CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

CVE-2025-71144

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure context reset on disconnect After the blamed commit below, if the MPC subflow is already in TCPCLOSE status or has fallback to TCP at mptcpdisconnect time, mptcpdofastclose skips setting the sendfastclose flag and t...

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 the Linux kernel that stems from a failure to reset the context when disconnecting, which could result in a subflow data-ready warning...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Use skdstget and dstdevrcu in mptcpactiveenable. mptcpactiveenable is called from subflowfinishconnect, which is icsk-icskafops-skrxdstset. This call is not always under a RCU context. Using skdstgetsk-dev could lead to...

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,...

SUSE CVE-2023-54085

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix NULL pointer dereference on fastopen early fallback In case of early fallback to TCP, subflowsynrecvsock deletes the subflow context before returning the newly allocated sock to the caller. The fastopen path does not...