Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: In the xtables function, there is a issue where walkers that process option data may read the last byte of the option area, which is less than 1 byte long. When the last byte of an option is not a single-byte character...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restricting xtcheckmatch/xtchecktarget extensions for NFPROTOARP Weiming Shi states that: The xtmatch and xttarget structures registered with NFPROTOUNSPEC can be loaded by any protocol family through nftcompa...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: Ensure that the names are null-terminated. Reject names that lack a \0 character before passing them to functions that expect c-string parameters. The fixes tag indicates the most recent commit that requires...

Astra Linux – Vulnerability in Linux

A heap out-of-bounds write that affects Linux since v2.6.19-rc1 was discovered in net/netfilter/xtables.c. This vulnerability allows an attacker to gain privileges or cause a Denial-of-Service attack through heap memory corruption by manipulating the user name space...

EulerOS 2.0 SP12 : kernel (EulerOS-SA-2026-3345)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : dlm: validate length in dlmsearchrsbtreeCVE-2026-43125 net: annotate data-races around sk-skdataready,writespaceCVE-2026-23302 netfilter: ctnetlin...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001504)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001504 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: fix LED ID check in ledtgcheck Syzbot has reported the following BUG detected...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099966)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099966 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100549)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100549 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options ...

CVE-2026-64079

A flaw was found in the Linux kernel's netfilter xtables component. A race condition occurs when a network namespace netns table is registered, making it visible with a null operations ops pointer. If a pernet exit operation runs concurrently, it can attempt to unregister the table using this nul...

CVE-2026-64078

A flaw was found in the Linux kernel's netfilter xtables component. This vulnerability occurs when a userspace process attempts to re-instantiate a netfilter table after the module has been removed. Due to an incomplete unregistration process, the table cannot be properly re-established,...

AZL-92763 CVE-2026-64078 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: add and use xtablesunregistertableexit Previous change added xtablesunregistertablepreexit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that ...

AZL-92724 CVE-2026-64079 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64079 netfilter: x_tables: allocate hook ops while under mutex

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64079

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64078 netfilter: x_tables: add and use xtables_unregister_table_exit

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: add and use xtablesunregistertableexit Previous change added xtablesunregistertablepreexit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that ...

CVE-2026-64078: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: add and use xtablesunregistertableexit Previous change added xtablesunregistertablepreexit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that ...

CVE-2026-64079: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

Linux Distros Unpatched Vulnerability : CVE-2026-53219

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob...

SUSE CVE-2026-53219

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...

AZL-90446 CVE-2026-53219 affecting package kernel for versions less than 6.6.143.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: avoid leaking percpu counter pointers The native and compat get-entries paths copy the fixed rule entry header from the kernelized rule blob to userspace before overwriting the entry's counter fields with a...