kernel: tcp: fix potential race in tcp_v6_syn_recv_sock()

A flaw was found in the Linux kernel. A race condition exists in the TCP Transmission Control Protocol IPv6 Internet Protocol version 6 socket handling, specifically within the tcpv6synrecvsock function. This occurs because a child socket becomes visible in the TCP hash table before its...

kernel: tcp: fix potential race in tcp_v6_syn_recv_sock()

A flaw was found in the Linux kernel. A race condition exists in the TCP Transmission Control Protocol IPv6 Internet Protocol version 6 socket handling, specifically within the tcpv6synrecvsock function. This occurs because a child socket becomes visible in the TCP hash table before its...

CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 All versions V5.0. The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

A hash collision flaw was discovered in the IPv6 connection lookup table within the Linux kernel’s IPv6 functionality. This flaw occurs when a user carries out a new type of SYN flood attack. A user located within the local network or with a high-bandwidth connection can cause the CPU usage of th...

Siemens SIMATIC CN 4100 安全漏洞

The Siemens SIMATIC CN 4100 is a communication node developed by the German company Siemens. Versions of the Siemens SIMATIC CN 4100 prior to V5.0 contained security vulnerabilities. These vulnerabilities stemmed from the system’s susceptibility to resource exhaustion when processing large amount...

EUVD-2026-27757

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcpv6synrecvsock Code in tcpv6synrecvsock after the call to tcpv4synrecvsock is done too late. After tcpv4synrecvsock, the child socket is already visible from TCP ehash table and other cpus might use i...

CVE-2026-43198

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcpv6synrecvsock Code in tcpv6synrecvsock after the call to tcpv4synrecvsock is done too late. After tcpv4synrecvsock, the child socket is already visible from TCP ehash table and other cpus might use i...

CVE-2026-43198

CVE-2026-43198 is a Linux kernel race in IPv6 TCP socket handling. The issue occurs in tcp_v6_syn_recv_sock() where the child socket becomes visible before IPv6 state is initialized, allowing other CPUs to access it and potentially triggering instability. The fix moves the problematic code into t...

CVE-2026-43198 tcp: fix potential race in tcp_v6_syn_recv_sock()

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcpv6synrecvsock Code in tcpv6synrecvsock after the call to tcpv4synrecvsock is done too late. After tcpv4synrecvsock, the child socket is already visible from TCP ehash table and other cpus might use i...

Juniper Junos OS Vulnerability (JSA83021)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA83021 advisory. - An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX4600 and SRX5000 Series allows an attacke...

CVE-2026-5590

A race condition during TCP connection teardown can cause tcprecv to operate on a connection that has already been released. If tcpconnsearch returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcpbacklogisfull and dereferenced without validatio...

CVE-2026-5590

A race condition during TCP connection teardown can cause tcprecv to operate on a connection that has already been released. If tcpconnsearch returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcpbacklogisfull and dereferenced without validatio...

SUSE CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

EUVD-2026-18720

In the Linux kernel, the following vulnerability has been resolved: net/rose: fix NULL pointer dereference in rosetransmitlink on reconnect syzkaller reported a bug 1, and the reproducer is available at 2. ROSE sockets use four sk-skstate values: TCPCLOSE, TCPLISTEN, TCPSYNSENT, and TCPESTABLISHE...

EUVD-2026-18700

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

UBUNTU-CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

CVE-2026-23460 net/rose: fix NULL pointer dereference in rose_transmit_link on reconnect

In the Linux kernel, the following vulnerability has been resolved: net/rose: fix NULL pointer dereference in rosetransmitlink on reconnect syzkaller reported a bug 1, and the reproducer is available at 2. ROSE sockets use four sk-skstate values: TCPCLOSE, TCPLISTEN, TCPSYNSENT, and TCPESTABLISHE...

CVE-2026-23460

In the Linux kernel, the following vulnerability has been resolved: net/rose: fix NULL pointer dereference in rosetransmitlink on reconnect syzkaller reported a bug 1, and the reproducer is available at 2. ROSE sockets use four sk-skstate values: TCPCLOSE, TCPLISTEN, TCPSYNSENT, and TCPESTABLISHE...

CVE-2026-23460 net/rose: fix NULL pointer dereference in rose_transmit_link on reconnect

In the Linux kernel, the following vulnerability has been resolved: net/rose: fix NULL pointer dereference in rosetransmitlink on reconnect syzkaller reported a bug 1, and the reproducer is available at 2. ROSE sockets use four sk-skstate values: TCPCLOSE, TCPLISTEN, TCPSYNSENT, and TCPESTABLISHE...