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...

The vulnerabilities of the functions mptcp_sendmsg_frag() and mptcp_subflow_get_send() in the module net/mptcp/protocol.c, which are part of the MPTCP protocol implementation in Linux kernel, allow attackers to compromise the confidentiality, integrity, and accessibility of the protected information.

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-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...

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...

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

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 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...

Linux kernel 安全漏洞

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. It isn’t always under a RCU context. Using skdstgetsk.dev could trigger a...

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...

EUVD-2023-60360

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...

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...