Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: arm64: mm: fix VA-range sanity check CVE-2023-53989 In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level CVE-2025-39961 In the Linu...

Astra Linux – Vulnerability in Linux

In the Linux kernel up to version 5.8.7, local attackers who were able to inject conntrack netlink configurations could exploit an overflow in a local buffer, resulting in crashes or triggering the use of incorrect protocol numbers in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink....

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revisit gc autotuning As of commit 4608fdfc07e1, “netfilter: conntrack: collect all entries in one cycle” was changed, and the garbage collection of conntrack entries now occurs every 2 minutes. On systems...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

SUSE-SU-2026:22145-1 Security update for openvswitch

This update for openvswitch fixes the following issues - CVE-2026-5265: heap over-read in ICMP error response generation bsc1262498. - CVE-2026-5367: heap over-read in OVN DHCPv6 client ID processing bsc1262499. - CVE-2026-34956: Invalid memory access in conntrack FTP alg bsc1261273. Changes for...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

RockyLinux 9 : kernel (RLSA-2026:25217)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:25217 advisory. kernel: scsi: target: iscsi: Fix use-after-free in iscsitdecconnusagecount CVE-2026-23216 kernel: Linux kernel: Use-after-free in bonding driver leads t...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

Important: Red Hat Security Advisory: kernel security update

An update for kernel 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 vulnerability from th...

SUSE-SU-2026:22068-1 Security update for openvswitch

This update for openvswitch fixes the following issue - CVE-2026-34956: Invalid memory access in conntrack FTP alg bsc1261273...

RLSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...

kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackhelper. When a connection tracking helper is unregistered, its associated expectations are not properly cleaned up. This oversight can lead to a use-after-free vulnerability, where the system attempts t...

kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackhelper. When a connection tracking helper is unregistered, its associated expectations are not properly cleaned up. This oversight can lead to a use-after-free vulnerability, where the system attempts t...

kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackhelper. When a connection tracking helper is unregistered, its associated expectations are not properly cleaned up. This oversight can lead to a use-after-free vulnerability, where the system attempts t...

kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...