Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The commit mutex should not be released during the critical section between nftgcseqBegin and nftgcseqEnd. Otherwise, the async GC worker could collect expired objects and obtain the released commit lock with...

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

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfttunnel: fixed a type confusion issue with geneveopt. When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should process each geneveopt structure individually and compactly. Therefore, whe...

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

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Fixed a potential data race in nftobjtypeget. The function nftunregisterobj can occur concurrently with nftobjtypeget. There is no protection when iterating over the nftablesobjects list in nftobjtypeget...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables – There is a possibility of module reference underflow in the error path. When nftexprclone fails, dst-ops is set. However, the module reference count has not been updated yet. As a result, nftexprdestroy...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttproxy: restrict to prerouting hook TPROXY is only allowed during prerouting, but nfttproxy does not check this. This fix resolves a crash null dereference that occurs when using tproxy from, for example, the output...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the net/netfilter/nftablesapi.c file within the Linux kernel, up to version 5.18.1, it is possible for a local user who can create user/net namespaces to escalate privileges to root. This occurs because an incorrect NFTSTATEFULEXPR check leads to a use-after-free vulnerability...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip end interval element from gc Lazy garbage collection for rbtree during insertions may collect end interval elements that have just been added during these transactions. These elements are skipped, as...

PT-2026-91331

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf tables: don't queue packet path object notifications All file:line references below are against v7.2-rc4 ac5b0e5651b1. The trace was captured on 7.2.0-rc6-kasan72rc6 075b74841bd0, where the same lines apply. nft obj...

PT-2026-82964

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the netfilter module, the xt nat SNAT and DNAT target handlers assume that IP-family conntrack state is present. When instantiated from an unsupported family through nft compat, such ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: The issue of underflow in the chain reference counter was fixed. The error in adding elements in the set element path causes the reference counter to be decremented twice—once when releasing an element and...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsethash: Unaligned atomic read on struct nftsetext Access to the genmask field in struct nftsetext results in an unaligned atomic read: 72.130109 Unable to handle kernel paging requests at virtual address...

A Study of Bluetooth Access Control Based on NFT Soft Pairing

This paper proposes a Non-Fungible Token NFT soft pairing framework for Bluetooth service access control. Unlike conventional Bluetooth systems where pairing implicitly grants persistent service access, the proposed approach decouples native Bluetooth pairing from authorization without modifying...

PT-2026-73208

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nft payload offload mask function within the netfilter module. When building an offload match mask for a payload expression covering only part of a header field,...

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 ...

PT-2026-72604

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nft compat layer of the netfilter subsystem where ebtables emulation fails to reject non-bridge targets. While xtables targets return netfilter verdicts such as NF...

PT-2026-72621

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A stack leak exists in the netfilter module, specifically within the nft meta bridge component. The issue occurs because the system fails to properly test for a nonzero return value when...

PT-2026-72442

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the netfilter nft fib component when a fib expression is used in a netdev egress base chain. This happens because the nft fib validate function...

PT-2026-72440

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory allocation failure in the netfilter module can cause a cloned nft pipapo match structure to enter an inconsistent state. This occurs when lookup tables are partially resized, bi...

PT-2026-72508

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter component where the nft lookup eval function incorrectly handles catchall elements during inverted lookups NFT LOOKUP F INV. The function determines if a...

SUSE CVE-2026-63858

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...