Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use OPTIONMPTCPMPJSYNACK in subflowfinishconnect subflowfinishconnect uses four fields backup, joinid, thmac, none that may contain garbage unless OPTIONMPTCPMPJSYNACK has been set in mptcpParseOption...

The vulnerability of the `tcp_ao_finish_connect()` function in the `net/ipv4/tcp_ao.c` module of the Linux operating system’s IPv4 protocol implementation allows a attacker to cause a service failure.

The vulnerability of the tcpaofinishconnect function in the net/ipv4/tcpao.c module of the Linux operating system’s IPv4 protocol implementation is related to the pointer dereferencing. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

CVE-2025-40133

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use skdstget and dstdevrcu in mptcpactiveenable. mptcpactiveenable is called from subflowfinishconnect, which is icsk-icskafops-skrxdstset and it's not always under RCU. Using skdstgetsk-dev could trigger UAF. Let's use...

CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

EUVD-2025-32388

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

PT-2025-40646

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to a NULL pointer dereference within the tcp ao finish connect function when TCP-AO is used in conjunction with TCP REPAIR. This issue can occur...

The vulnerability of the mptcp component in Linux kernel, which allows a hacker to cause a service failure

The vulnerability of the mptcp component in the Linux operating system’s kernel is related to errors in resource management within the subflowfinishconnect function. Exploiting this vulnerability can allow a attacker to cause a service failure...

kernel: mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()

CVE-2024-35840 is a vulnerability in the Linux kernel’s Multipath TCP MPTCP implementation. It occurs because the subflowfinishconnect function may handle uninitialized data in certain fields if a specific MPTCP option OPTIONMPTCPMPJSYNACK is not correctly set during option parsing. This could le...

SUSE CVE-2024-35840

In the Linux kernel, the following vulnerability has been resolved: mptcp: use OPTIONMPTCPMPJSYNACK in subflowfinishconnect subflowfinishconnect uses four fields backup, joinid, thmac, none that may contain garbage unless OPTIONMPTCPMPJSYNACK has been set in mptcpparseoption...

DEBIAN-CVE-2024-35840

In the Linux kernel, the following vulnerability has been resolved: mptcp: use OPTIONMPTCPMPJSYNACK in subflowfinishconnect subflowfinishconnect uses four fields backup, joinid, thmac, none that may contain garbage unless OPTIONMPTCPMPJSYNACK has been set in mptcpparseoption...

UBUNTU-CVE-2024-35840

In the Linux kernel, the following vulnerability has been resolved: mptcp: use OPTIONMPTCPMPJSYNACK in subflowfinishconnect subflowfinishconnect uses four fields backup, joinid, thmac, none that may contain garbage unless OPTIONMPTCPMPJSYNACK has been set in mptcpparseoption...

PT-2024-8467

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to errors in resource management within the subflow finish connect function of the mptcp component in the Linux kernel. This may allow an attacker to cause a denial ...