CVE-2023-53781 smc: Fix use-after-free in tcp_write_timer_handler().

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

The vulnerability of the tcp_init_transfer() function in the net/ipv4/tcp_input.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the tcpinittransfer function in the net/ipv4/tcpinput.c module of the Linux kernel is related to the repeated release of previously released memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto

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sctp: avoid NULL dereference when chunk data buffer is missing

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SUSE CVE-2025-40240

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

UBUNTU-CVE-2025-40240

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

CVE-2025-40240

The CVE CVE-2025-40240 is a Linux kernel SCTP vulnerability. The issue was a NULL dereference when processing a chunk data buffer that is missing; chunk->skb could be dereferenced in the if-block intended to handle NULL, unless frag_list is checked and the replacement of chunk->skb occurs j...

RLSA-2025:22388 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm CVE-2025-38724 kernel: smb: client: fix race with concurrent opens in rename2 CVE-2025-39825 kernel: mm/memory-failure: fix...

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

A flaw was found in the TCP subsystem in tcpdisconnect of the Linux kernel.The server-side TCP Fast Open socket was reused as a new client before the TFO socket completes, leading to an information leak...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

CVE-2025-55222

CVE-2025-55222 affects Socomec DIRIS Digiware M-70 gateway (firmware 1.6.9). A DoS can be triggered by unauthenticated crafted Modbus TCP or Modbus RTU over TCP messages (USB Function), on port 503, causing device unresponsiveness. TALOS details confirm the vulnerability exists in Modbus TCP/RTU ...

kernel: Linux kernel: Privilege escalation or Denial of Service via TCP Fast Open vulnerability

A flaw was found in the Linux kernel. A local attacker with low privileges could exploit a memory corruption vulnerability, specifically a use-after-free and double-free, within the TCP Fast Open TFO socket processing. This occurs when a listener is closed while a TFO socket is being processed in...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

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

A flaw was found in the TCP subsystem in tcpdisconnect of the Linux kernel.The server-side TCP Fast Open socket was reused as a new client before the TFO socket completes, leading to an information leak...

PT-2025-48480

Name of the Vulnerable Software and Affected Versions Socomec DIRIS Digiware M-70 version 1.6.9 Description A denial of service condition can occur due to specially crafted network requests targeting the Modbus TCP and Modbus RTU over TCP functionality. An attacker can trigger this by sending...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm CVE-2025-38724 kernel: smb: client: fix race with concurrent opens in rename2 CVE-2025-39825 kernel: mm/memory-failure: fix...

RLSA-2025:21931 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: NFS: Fix filehandle bounds checking in nfsfhtodentry CVE-2025-39730 kernel: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect CVE-2025-39955 For more details about the security issues,...

The vulnerability of the sctp_disposition function sctp_sf_do_5_1D_ce() in the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the sctpdisposition function sctpsfdo51Dce in the Linux operating system is related to an error in pointer arithmetic. Exploiting this vulnerability could allow an attacker to cause a service failure...

PT-2025-48097

Name of the Vulnerable Software and Affected Versions NanoMQ versions prior to 0.22.5 Description A Heap-Use-After-Free UAF vulnerability exists in the TCP transport component of NanoMQ, stemming from improper resource management and premature cleanup of message and pipe structures. This occurs...

NanoMQ 资源管理错误漏洞

NanoMQ is a lightweight and fast MQTT Broker for IoT edge platforms open sourced by EMQ USA. A resource management error vulnerability exists in NanoMQ versions prior to 0.22.5, which stems from a post-release reuse in the TCP transport component that could lead to memory corruption...