Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetrbtree: Fixed an issue with overlapping expiration walks. The lazy garbage collection during insertion, which should remove entries when the timeout occurs, fails to properly release the remaining part of the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetpipapo: prevents overflow in lookup table allocation When calculating the size of the lookup table, ensure that the following multiplication does not cause an overflow: - The maximum value of desc-fieldlen is...

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: nftsetpipapo: do not free live element Pablo reported a crash when processing large batches of elements with a back-to-back add/remove pattern. Quoting Pablo: addelem"00000000" timeout 100 ms ... addelem"0000000X"...

Astra Linux – Vulnerability in Linux 5.10

The nftablesnewset function in net/netfilter/nftablesapi.c in the Linux kernel before version 5.12.13 allows local users to cause a denial of service due to NULL pointer dereferencing and general protection faults, caused by the absence of initialization for nftsetelemexpralloc. A local user can...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetrbtree: fixed a null dereference issue when inserting elements into the RBTree. There is no guarantee that rbprev will not return NULL in nftrbtreegcelem: A general protection fault occurs, likely due to a...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: walking over the current view in netlink dump The generation mask can be updated while netlink dump is in progress. The iterator for the pipapo set backend cannot rely on it to infer which view of the...

Astra Linux – Vulnerability in Linux 5.10, Linux

A issue was discovered in the Linux kernel through version 5.18.9. A type confusion bug in nftseteleminit could be exploited by a local attacker to escalate privileges. This is a different vulnerability than CVE-2022-32250. The attacker can obtain root access, but must start with an unprivileged...

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: 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...

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...

Astra Linux – Vulnerability found in Linux 6.12, 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...

EUVD-2026-32339

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

CVE-2026-45873

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

UBUNTU-CVE-2026-45873

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

CVE-2026-45901 netfilter: nf_tables: revert commit_mutex usage in reset path

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: revert commitmutex usage in reset path It causes circular lock dependency between commitmutex, nfnlsubsysipset and nlkcbmutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same...

CVE-2026-45873

CVE-2026-45873 concerns Linux kernel netfilter nft_set_rbtree. The issue arises from partial overlap detection for anonymous sets where adjacent intervals omit end elements, allowing overlaps such as A-B and A-C with C

CVE-2026-45873 netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

CVE-2026-45873 netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

CVE-2026-45873

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the end element is omitted. The existing partial overlap detection logic...

Linux Distros Unpatched Vulnerability : CVE-2026-45873

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftsetrbtree: check for partial overlaps in anonymous sets Userspace provides an optimized representation in case intervals are adjacent, where the e...