PT-2026-82964

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt nat: reject unsupported target families xt nat SNAT and DNAT target handlers assume IP-family conntrack state is present and can dereference a NULL pointer when instantiated from an unsupported family through nft...

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 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 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 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...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetpipapo: Clamp the maximum map bucket size to INTMAX Otherwise, a WARNONONCE error may occur in kvmallocnodenoprof when resizing the hashtable, because GFPNOWARN is not set. Similar issues include: b541ba7d1f5a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Fixed an inverted element activity check in nftmapcatchallactivate. nftmapcatchallactivate includes an inverted element activity check compared to its non-catchall counterpart, nftmapelemactivate, 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...

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-2026-73208

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft payload: fix mask build for partial field offload nft payload offload mask builds the offload match mask for a payload expression that covers only part of a header field. For a partial IPv6 address match field len ...

PT-2026-72604

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft compat: ebtables emulation must reject non-bridge targets xtables targets return netfilter verdicts: NF ACCEPT, NF DROP, and so on. ebtables targets return incompatible verdicts: EBT ACCEPT, EBT DROP, ... We cannot...

PT-2026-72440

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft set pipapo: don't leak bad clone into future transaction On memory allocation failure the cloned nft pipapo match can enter a bad state: - some fields can have their lookup tables resized while others did not - bit...

PT-2026-72621

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft meta bridge: fix NFT META BRI IIFPVID stack leak This needs to test for nonzero retval...

PT-2026-72508

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft lookup: fix catchall element handling with inverted lookups nft lookup eval decides whether a lookup matched found from the direct set lookup and priv-invert before falling back to the catchall element used by...

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...

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...

CVE-2026-64150

A flaw was found in the Netfilter component of the Linux kernel. In the nftinner module, an error path incorrectly re-enables softirqs before releasing a local lock. This improper ordering of lock operations could lead to a race condition, potentially allowing a local attacker to cause a denial o...

CVE-2026-64150 netfilter: nft_inner: release local_lock before re-enabling softirqs

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftinner: release locallock before re-enabling softirqs Quoting sashiko: In the error path, localbhenable is called before localunlocknestedbh...

CVE-2026-64150

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftinner: release locallock before re-enabling softirqs Quoting sashiko: In the error path, localbhenable is called before localunlocknestedbh...

CVE-2026-64150

CVE-2026-64150 concerns the Linux kernel netfilter nft_inner code. The issue arises from an incorrect order in the error path where local_bh_enable() is called before local_unlock_nested_bh(), effectively releasing a local_lock out of order. This has been resolved in the kernel via the referenced...