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-2026-64079 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 ...

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...

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...

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...

CVE-2026-53219

The CVE-2026-53219 issue affects the Linux kernel netfilter x_tables path. The root cause is that native/compat get-entries copied the fixed rule entry header to userspace before sanitizing and overwriting the counter fields, exposing the percpu allocation address (pcnt) in SMP environments. The ...

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...

SUSE CVE-2026-43452

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 is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

The vulnerability of the netfilter x_tables component in Linux operating systems allows attackers to compromise the confidentiality and accessibility of protected information.

The vulnerability of the netfilter xtables component in Linux operating systems is related to errors that occur when a line or array ends with a zero character. Exploiting this vulnerability can allow an attacker to compromise the confidentiality and accessibility of protected information...

EUVD-2026-28758

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 is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

CVE-2026-43452

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 is a non-single-byte option kind, walkers that advance with i += opi + 1 ? : 1 can read opi + 1 past the end of the option area. Add...

Linux Distros Unpatched Vulnerability : CVE-2026-43452

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: xtables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i +...

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 an out-of-bounds read issue during option traversal in netfilter xtables, potentially leading to...

Linux Distros Unpatched Vulnerability : CVE-2026-43028

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: xtables: ensure names are nul-terminated Reject names that lack a \0 character before feeding them to functions that expect c-strings. Fixes tag is t...

EUVD-2026-26627

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: ensure names are nul-terminated Reject names that lack a \0 character before feeding them to functions that expect c-strings. Fixes tag is the most recent commit that needs this change...

CVE-2026-43028

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: ensure names are nul-terminated Reject names that lack a \0 character before feeding them to functions that expect c-strings. Fixes tag is the most recent commit that needs this change...

CVE-2026-31424

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict xtcheckmatch/xtchecktarget extensions for NFPROTOARP Weiming Shi says: xtmatch and xttarget structs registered with NFPROTOUNSPEC can be loaded by any protocol family through nftcompat. When such a...