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 security update

An update is available for kernel. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

kernel: netfilter: nf_tables: release flowtable after rcu grace period on error

A flaw was found in the Linux kernel's netfilter component, specifically within the nftables subsystem. An error in releasing a flowtable after an RCU Read-Copy-Update grace period could lead to a use-after-free vulnerability. This issue could expose the flowtable to the packet path and...

RockyLinux 9 : kernel (RLSA-2026:21556)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21556 advisory. kernel: proc: use the same treatment to check proclseek as ones for procreaditer et.al CVE-2025-38653 kernel: ima: don't clear IMADIGSIG flag when setti...

EUVD-2026-32367

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

AZL-88692 CVE-2026-45901 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

CVE-2026-45901

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

UBUNTU-CVE-2026-45901

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

CVE-2026-45901 netfilter: nf_tables: revert commit_mutex usage in reset path

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

Linux Distros Unpatched Vulnerability : CVE-2026-45901

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft rese...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: A memory leak was fixed in nftablesupdchain. If nftnetdevregisterhooks fails, the memory associated with nftstats is not freed, resulting in a memory leak. This patch addresses this issue by moving the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Clean up the hook list when the offload flag check fails Resuspend the hook list so that nftchainreleasehook has a chance to release the hooks. BUG: Memory leak Unreferenced object 0xffff88810180b100 size...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Unlinking the table before deleting it The syzbot reports the following UAFs: BUG: KASAN: Use-after-free in memcmp+0x18f/0x1c0, lib/string.c:955 nlastrcmp+0xf2/0x130, lib/nlattr.c:836...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Fix for duplicate devices in netdev hooks When handling NETDEVREGISTER notifications, duplicate device registrations must be avoided, as the device might have been added by nftnetdevhookalloc during the...

kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check

A flaw was found in the Linux kernel's nftables component. A logic bug in nftmapcatchallactivate causes an inverted element activity check during the abort path of a failed transaction. This can lead to a use-after-free vulnerability, as catchall verdict elements may still reference a freed chain...

CVE-2026-43454

A flaw was found in the Linux kernel's netfilter nftables component. This vulnerability allows for duplicate device registration when handling network device registration notifications. Such duplicate registrations can lead to unexpected system behavior or instability...

CVE-2026-43454

CVE-2026-43454 concerns the Linux kernel nf_tables netfilter component. The issue arises when handling NETDEV_REGISTER notifications: a device may be registered twice because nft_netdev_hook_alloc() could have already added the device when the hook was created. The result is duplicate device regi...

CVE-2026-43454

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Fix for duplicate device in netdev hooks When handling NETDEVREGISTER notification, duplicate device registration must be avoided since the device may have been added by nftnetdevhookalloc already when creati...

CVE-2026-43454 netfilter: nf_tables: Fix for duplicate device in netdev hooks

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Fix for duplicate device in netdev hooks When handling NETDEVREGISTER notification, duplicate device registration must be avoided since the device may have been added by nftnetdevhookalloc already when creati...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the netfilter nftables component failing to properly avoid duplicate device registrations when...