Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1254)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1254 advisory. In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: always use READONCE to read ring provided buffer lengths CVE-2025-39816 In the Linux kernel, the following...

EUVD-2022-54857

In the Linux kernel, the following vulnerability has been resolved: tcp: tcprtxsynack can be called from process context Laurent reported the enclosed report 1 This bug triggers with following coditions: 0 Kernel built with CONFIGDEBUGPREEMPT=y 1 A new passive FastOpen TCP socket is created. This...

tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

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CVE-2025-39955

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

AZL-76431 CVE-2025-39955 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

UBUNTU-CVE-2025-39955

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

CVE-2025-39955 tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

CVE-2025-39955

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

CVE-2025-39955 tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot reused the server-side TCP Fast Open socket as a new client before the...

CVE-2025-39955

The CVE-2025-39955 entry concerns the Linux kernel TCP Fast Open path. The root cause is that tcp_disconnect() failed to clear tcp_sk(sk)->fastopen_rsk, allowing the retransmit timer to trigger while a TFO socket is being reused, potentially delaying or missing a retransmission. The fix implem...

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 stems from tcpdisconnect not clearing tcpsksk-fastopenrsk, which could result in packets not being retransmitted...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987003)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987003 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpfastopen. While reading sysctltcpfastopen, it can be changed...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987249)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987249 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpfastopenblackholetimeout. While reading...

EUVD-2025-5248

Malicious code in bioql PyPI...

PT-2025-51601

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue where the tcp fastopen active disable ofo check function does not properly handle memory management, potentially leading to a Use-After-Free UAF...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Properly handling disconnections due to fastopen. Syzbot was able to trigger data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules...

SUSE CVE-2022-49585

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpfastopenblackholetimeout. While reading sysctltcpfastopenblackholetimeout, it can be changed concurrently. Thus, we need to add READONCE to its readers...

SUSE CVE-2022-49586

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpfastopen. While reading sysctltcpfastopen, it can be changed concurrently. Thus, we need to add READONCE to its readers...

CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...

DEBIAN-CVE-2025-21705

In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syzbot was able to trigger a data stream corruption: WARNING: CPU: 0 PID: 9846 at net/mptcp/protocol.c:1024 mptcpcleanuna+0xddb/0xff0 net/mptcp/protocol.c:1024 Modules linked in: CPU: 0...