The vulnerabilities of the functions nft_rbtree_gc_elem() and __nft_rbtree_insert() in the module net/netfilter/nft_set_rbtree.c of the netfilter component of the Linux operating system’s kernel allow attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the functions nftrbtreegcelem and nftrbtreeinsert in the net/netfilter/nftsetrbtree.c module of the netfilter component of the Linux operating system is related to insufficient validation of input data. Exploiting this vulnerability could allow an attacker to compromise the...

The vulnerability of the nft_set_rbtree.c component in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the nftsetrbtree.c component in the Linux operating system is related to incorrect checks for consistency in input data. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2026-45873: Undefined Security Weakness

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...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013782)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013782 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip end interval element from gc rbtree lazy gc on insert might collect...

CVE-2023-53566: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix null deref on element insertion There is no guarantee that rbprev will not return NULL in nftrbtreegcelem: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 1 PREEM...

Linux Distros Unpatched Vulnerability : CVE-2023-53304

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remov...

CVE-2023-53304 netfilter: nft_set_rbtree: fix overlap expiration walk

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with...

CVE-2023-53304: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nftables: nftsetrbtree skip end interval element from gc CVE-2024-26581 kernel: netfilter: nftlimit: reject configurations that cause integer overflow CVE-2024-26668 kernel: vfio/pci: Loc...

SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2024:2183-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2183-1 advisory. The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes. The following security bugs were fixed: -...

Ubuntu 22.04 LTS : Linux kernel (Low Latency) vulnerabilities (USN-6743-2)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6743-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6742-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6742-1 advisory. Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6741-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6741-1 advisory. Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an...

SUSE CVE-2024-26581

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip end interval element from gc rbtree lazy gc on insert might collect an end interval element that has been just added in this transactions, skip end interval elements that are not yet active...

CVE-2024-26581

A flaw was found in the Linux kernel’s Netfilter subsystem. This issue occurs in the nftsetrbtree. rbtree lazy gc on insert, which might collect an end interval element just added in a transaction and skip the end interval elements not yet active. Mitigation 1. This flaw can be mitigated by...

CVE-2023-52433

A flaw was found in the Netfilter subsystem in the Linux kernel. This issue occurs in the nftsetrbtree, where new elements in this transaction might expire before the transaction ends. Skip sync GC for such elements, otherwise a commit path might walk over an already released object. Once the...

CVE-2024-26581

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip end interval element from gc rbtree lazy gc on insert might collect an end interval element that has been just added in this transactions, skip end interval elements that are not yet active...

CVE-2023-52433

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an alrea...

CVE-2023-52433

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetrbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an alrea...

CVE-2024-26581

CVE-2024-26581 affects the Linux kernel netfilter nft_set_rbtree end-interval GC logic, where rbtree lazy GC on insert could skip an end-interval element just added in the same transaction, potentially enabling privilege/escalation impact for local attackers. Affected: Linux kernel versions with ...