CVE-2025-40186 tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request().

In the Linux kernel, the following vulnerability has been resolved: tcp: Don't call reqskfastopenremove in tcpconnrequest. syzbot reported the splat below in tcpconnrequest. 0 If a listener is closed while a TFO socket is being processed in tcpconnrequest, inetcskreqskqueueadd does not set reqsk-...

CVE-2025-40186

In the Linux kernel, the following vulnerability has been resolved: tcp: Don't call reqskfastopenremove in tcpconnrequest. syzbot reported the splat below in tcpconnrequest. 0 If a listener is closed while a TFO socket is being processed in tcpconnrequest, inetcskreqskqueueadd does not set reqsk-...

CVE-2025-40186 tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request().

In the Linux kernel, the following vulnerability has been resolved: tcp: Don't call reqskfastopenremove in tcpconnrequest. syzbot reported the splat below in tcpconnrequest. 0 If a listener is closed while a TFO socket is being processed in tcpconnrequest, inetcskreqskqueueadd does not set reqsk-...

CVE-2025-59089 Python-kdcproxy: remote dos via unbounded tcp upstream buffering

If an attacker causes kdcproxy to connect to an attacker-controlled KDC server e.g. through server-side request forgery, they can exploit the fact that kdcproxy does not enforce bounds on TCP response length to conduct a denial-of-service attack. While receiving the KDC's response, kdcproxy copie...

CVE-2025-59089

CVE-2025-59089 is a DoS in python-kdcproxy caused by unbounded TCP buffering and permissive handling of response chunks, enabling memory/CPU exhaustion when kdcproxy connects to attacker-controlled KDCs. Related issue CVE-2025-59088 concerns SSRF via DNS SRV discovery for realms, allowing probing...

CVE-2025-59089 Python-kdcproxy: remote dos via unbounded tcp upstream buffering

If an attacker causes kdcproxy to connect to an attacker-controlled KDC server e.g. through server-side request forgery, they can exploit the fact that kdcproxy does not enforce bounds on TCP response length to conduct a denial-of-service attack. While receiving the KDC's response, kdcproxy copie...

Important: Red Hat Security Advisory: python-kdcproxy security update

An update for python-kdcproxy is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

Important: Red Hat Security Advisory: python-kdcproxy security update

An update for python-kdcproxy is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabili...

python-kdcproxy: Remote DoS via unbounded TCP upstream buffering

If an attacker causes kdcproxy to connect to an attacker-controlled KDC server e.g. through server-side request forgery, they can exploit the fact that kdcproxy does not enforce bounds on TCP response length to conduct a denial-of-service attack. While receiving the KDC's response, kdcproxy copie...

EUVD-2025-124950

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-2025-40133

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-2025-40133 mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().

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-2025-40133

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-2025-40133

CVE-2025-40133 is a Linux kernel vulnerability affecting Multipath TCP. The issue arises in mptcp_active_enable(), called from subflow_finish_connect(), where sk_dst_get(sk)->dev may be accessed outside RCU, risking a use-after-free. The advisory notes the fix is to use __sk_dst_get() and dst_...

CVE-2025-40133 mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().

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...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990806)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990806 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...

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 Linux kernel that originates from an incorrect call to reqskfastopenremove in tcpconnrequest, which could result in a reference count underfl...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990801)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990801 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: tcpmakesynack can be called from process context tcprtxsynack now could be called in process...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990833)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990833 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: Fix shift-out-of-bounds in dctcpupdatealpha. In dctcpupdatealpha, we use a module parameter...

CVE-2025-40815

A vulnerability has been identified in LOGO! 12/24RCE 6ED1052-1MD08-0BA2 All versions, LOGO! 12/24RCEo 6ED1052-2MD08-0BA2 All versions, LOGO! 230RCE 6ED1052-1FB08-0BA2 All versions, LOGO! 230RCEo 6ED1052-2FB08-0BA2 All versions, LOGO! 24CE 6ED1052-1CC08-0BA2 All versions, LOGO! 24CEo...