Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftct: sanitize layer 3 and 4 protocol numbers in custom expectations - Disallow families other than NFPROTOIPV4,IPV6,INET. - Disallow layer 4 protocols without ports, as the destination port is a mandatory attribut...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100387)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100387 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold ...

SUSE-SU-2026:22460-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2025-10263: arm64: errata: Mitigate TLBI errata on various Arm CPUs bsc1266290. - CVE-2025-68822: Input: alps - fix use-after-free bugs caused by...

Linux Distros Unpatched Vulnerability : CVE-2026-53267

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report 1. A rule like the one below is enough to...

CVE-2026-53267

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report 1. A rule like the one below is enough to trigger the bug: table ip t chain pre type filter hook prerouting...

EUVD-2026-39218

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report 1. A rule like the one below is enough to trigger the bug: table ip t chain pre type filter hook prerouting...

PT-2026-52362

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description An issue exists in the netfilter nft ct component where the system fails to properly handle template connection tracking ct during evaluation. When a rule sets a connection tracking zone...

CVE-2026-52970

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix missing expect put in obj eval nftctexpectobjeval allocates an expectation and may call nfctexpectrelated, but never drops its local reference. Add nfctexpectputexp before return to balance allocation...

CVE-2026-52970 netfilter: nft_ct: fix missing expect put in obj eval

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix missing expect put in obj eval nftctexpectobjeval allocates an expectation and may call nfctexpectrelated, but never drops its local reference. Add nfctexpectputexp before return to balance allocation...

CVE-2026-52970

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix missing expect put in obj eval nftctexpectobjeval allocates an expectation and may call nfctexpectrelated, but never drops its local reference. Add nfctexpectputexp before return to balance allocation...

PT-2026-51864

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter module where the nft ct expect obj eval function allocates an expectation and may call nf ct expect related, but fails to drop its local reference. This...

CVE-2026-43060

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntra...

CVE-2026-43060 netfilter: nft_ct: drop pending enqueued packets on removal

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntra...

PT-2026-37063

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter nft ct component where packets remaining in the nfqueue may maintain references to conntrack timeout policies, helpers, or templates specifying the...

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 the nftct module not properly disposing of queued messages when it is removed, potentially leading to...

CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...

CVE-2026-31665 netfilter: nft_ct: fix use-after-free in timeout object destroy

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...

CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...

CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...

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 reuse of timeout objects after their release in nftct, potentially leading to memory corrupti...