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, Linux

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The flow rule object is released from the commit path. There is no need to delay this process until the commit release path, as no packets traverse this object at all. It is accessed only from the control...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A use-after-free vulnerability exists in the netfilter component of the Linux kernel’s nftables module, which can be exploited to achieve local privilege escalation. The nftsetelemcatchalldeactivate function checks whether the catch-all set element is active in the current generation rather than...

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

A use-after-free vulnerability exists in the netfilter component of the Linux kernel’s code, specifically the nftables module. This vulnerability can be exploited to achieve local privilege escalation. Due to a race condition between the netlink control plane transaction of the nftables module an...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables – A memory leak occurred during the stateful object update. Stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The -init function wa...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Do not allow SETID to refer to another table. When performing lookups for sets within the same batch using their IDs, a set from a different table can be used. However, when the table is removed, a reference ...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: disallow timeout for anonymous sets These parameters have never been used in the user space; therefore, disallow them...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

A use-after-free vulnerability in the Linux kernel’s netfilter:nftables component can be exploited to achieve local privilege escalation. When nftablesdelrule is flushing table rules, it does not check whether the chain is bound, and the owner rule of the chain may also release objects under...

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...

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

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Fixed a potential data race in nftflowtabletypeget. The call to nftunregisterflowtabletype within nfflowinetmoduleexit can conflict with nftflowtabletypeget within nftablesnewflowtable. There is no...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-43024

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftables: reject immediate NFQUEUE verdict nftqueue is always used from userspace nftables to deliver the NFQUEUE verdict. Immediately emitting an...

CVE-2026-43024 netfilter: nf_tables: reject immediate NF_QUEUE verdict

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: reject immediate NFQUEUE verdict nftqueue is always used from userspace nftables to deliver the NFQUEUE verdict. Immediately emitting an NFQUEUE verdict is never used by the userspace nft tools, so reject...

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...