RLSA-2026:25121 Critical: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd: defer config unlock in nbdgenlconnect...

RockyLinux 8 : kernel (RLSA-2026:25121)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:25121 advisory. kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd:...

RHEL 8 : kernel-rt (RHSA-2026:25120)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25120 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

Ubuntu 20.04 LTS : Linux kernel (Azure FIPS) vulnerabilities (USN-8098-8)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8098-8 advisory. Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module LSM. An unprivileged local attacker could use these...

kernel: 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...

ALSA-2026:25121 Critical: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd: defer config unlock in nbdgenlconnect...

ALSA-2026:25120 Critical: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781...

UBUNTU-CVE-2026-46330

In the Linux kernel, the following vulnerability has been resolved: Revert "net/smc: Introduce TCP ULP support" This reverts commit d7cd421da9da2cc7b4d25b8537f66db5c8331c40. As reported by Al Viro, the TCP ULP support for SMC is fundamentally broken. The implementation attempts to convert an acti...

CVE-2026-46330 Revert "net/smc: Introduce TCP ULP support"

In the Linux kernel, the following vulnerability has been resolved: Revert "net/smc: Introduce TCP ULP support" This reverts commit d7cd421da9da2cc7b4d25b8537f66db5c8331c40. As reported by Al Viro, the TCP ULP support for SMC is fundamentally broken. The implementation attempts to convert an acti...

PT-2026-47788

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description TCP ULP support for SMC is fundamentally broken. The implementation attempts to convert an active TCP socket into an SMC socket by modifying the underlying struct file, dentry, and inode...

Linux Distros Unpatched Vulnerability : CVE-2026-46330

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Revert net/smc: Introduce TCP ULP support This reverts commit d7cd421da9da2cc7b4d25b8537f66db5c8331c40. As reported by Al Viro, the TCP ULP support for SMC is...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from design flaws in the TCP ULP support implemented in the net/smc module. This vulnerability allows an...

CVE-2026-47672

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. In 1.2.4 and earlier, any network-reachable caller can write arbitrary documents to any patient's electronic health record accessible by the institution's SMC-B card. In a misconfigured deployment e.g.,...

CVE-2026-45574

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, an attacker on the network path between the ePA service and the Konnektor can present any TLS certificate self-signed, expired, wrong CN and intercept all SOAP traffic. This includes patient...

Oracle Linux 8 : kernel (ELSA-2026-23258)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-23258 advisory. - smb: client: reject userspace cifs.spnego descriptions Paulo Alcantara RHEL-178938 CVE-2026-46243 - smb: client: fix OOB reads parsing symlink error response...

GHSA-C82X-F4XR-QV33 epa4all-client: Unauthenticated REST API for Patient Record Writes

Impact Any network-reachable caller can write arbitrary documents to any patient's electronic health record accessible by the institution's SMC-B card. In a misconfigured deployment e.g., following the production Docker example in the README, this is exploitable from the local network without...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013...

SUSE CVE-2026-46027

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smcclcwaitmsg...

CVE-2026-46027

A flaw was found in the Linux kernel's net/smc component. A remote attacker could exploit this by sending a Connection Less Connection CLC decline message during an early handshake stage. This causes the system to attempt to update link-group level synchronization state before it is properly...

CVE-2026-46027

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smcclcwaitmsg...