CVE-2025-68221 mptcp: fix address removal logic in mptcp_pm_nl_rm_addr

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix address removal logic in mptcppmnlrmaddr Fix inverted WARNONONCE condition that prevented normal address removal counter updates. The current code only executes decrement logic when the counter is already 0 abnormal...

CVE-2025-68188 tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()

In the Linux kernel, the following vulnerability has been resolved: tcp: use dstdevrcu in tcpfastopenactivedisableofocheck Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags...

CVE-2025-68188 tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()

In the Linux kernel, the following vulnerability has been resolved: tcp: use dstdevrcu in tcpfastopenactivedisableofocheck Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags...

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 an error in the mptcppmnlrmaddr address removal logic, which could lead to counter update failures...

Linux Distros Unpatched Vulnerability : CVE-2025-68227

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mptcp: Fix proto fallback detection with BPF The sockmap feature allows bpf syscall from userspace, or based on bpf sockops, replacing the skprot of sockets...

FreeBSD Security Advisory - FreeBSD-SA-25:11.ipfw

FreeBSD Security Advisory - In some cases, the 'tcp-setmss' handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference...

Linux Distros Unpatched Vulnerability : CVE-2025-68291

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mptcp: Initialise rcvmss before calling tcpsendactivereset in mptcpdofastclose. syzbot reported divide-by-zero in tcpselectwindow by MPTCP socket. 0 We had a...

Linux Distros Unpatched Vulnerability : CVE-2025-68188

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: use dstdevrcu in tcpfastopenactivedisableofocheck Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags. CVE-2025-68188 Note tha...

PT-2025-51640

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s MPTCP implementation related to protocol fallback detection with BPF. The issue arises when a server has MPTCP enabled, but a client sends a TCP SYN...

FreeBSD -- ipfw denial of service

Problem Description: In some cases, the tcp-setmss handler may free the packet data and throw an error without halting the rule processing engine. A subsequent rule can then allow the traffic after the packet data is gone, resulting in a NULL pointer dereference. Impact: Maliciously crafted packe...

FreeBSD-SA-25:11.ipfw

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-25:11.ipfw Security Advisory The FreeBSD Project Topic: ipfw denial of service Category: core Module: ipfw Announced: 2025-12-16 Affects: FreeBSD 13 and 14...

PT-2025-51634

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s MPTCP implementation related to address removal logic within the mptcp pm nl rm addr function. The issue stems from an inverted condition in a WARN ON...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-50253: bpf: make sure skb-len != 0 when redirecting to a tunneling device bsc1249912. CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in...

CVE-2025-40257

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix a race in mptcppmdeladdtimer mptcppmdeladdtimer can call skstoptimersyncsk, &entry-;addtimer while another might have free entry already, as reported by syzbot. Add RCU protection to fix this issue. Also change confusi...

PT-2026-4660

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the nvme-tcp subsystem, specifically in the nvmet tcp build pdu iovec function. This function can dereference null pointers without proper checks...

Linux Distros Unpatched Vulnerability : CVE-2023-53817

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: lib/mpi - avoid null pointer deref in mpicmpui During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie...

EulerOS 2.0 SP11 : kernel (EulerOS-SA-2025-2464)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : scsi: qla2xxx: Fix warning message due to adisc being flushedCVE-2022-49158 scsi: qla2xxx: Implement ref count for SRBCVE-2022-49159 tcp: add...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-991193)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991193 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: cdg: allow tcpcdgrelease to be called multiple times Apparently, mptcp is able to call...

EulerOS 2.0 SP11 : kernel (EulerOS-SA-2025-2483)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : scsi: qla2xxx: Fix warning message due to adisc being flushedCVE-2022-49158 scsi: qla2xxx: Implement ref count for SRBCVE-2022-49159 tcp: add...

CVE-2025-40820

Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only ...