In the Linux kernel, the following vulnerability has been resolved: bpf: Reject arena frees below the arena base bpf_arena_free_pages() accepts scalar arena addresses. The runtime masks the address to the low 32 bits and reconstructs a full user address from the arena base before returning the range to the arena free tree. When the scalar value is below the low 32 bits of the arena base, full_uaddr falls below user_vm_start. The existing upper-end clipping then turns this into an out-of-range free-tree offset. A later allocation can reuse that offset and return an address below the arena mapping. Reject such frees before computing the clipped range.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In the Linux kernel, the following vulnerability has been resolved: bpf: Reject arena frees below the
    arena base bpf_arena_free_pages() accepts scalar arena addresses. The runtime masks the address to the low
    32 bits and reconstructs a full user address from the arena base before returning the range to the arena
    free tree. When the scalar value is below the low 32 bits of the arena base, full_uaddr falls below
    user_vm_start. The existing upper-end clipping then turns this into an out-of-range free-tree offset. A
    later allocation can reuse that offset and return an address below the arena mapping. Reject such frees
    before computing the clipped range. (CVE-2026-93045)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - bpf: Reject arena frees below the arena base bpf_arena_free_pages() accepts scalar arena addresses. The     runtime masks the address to the low 32 bits and reconstructs a full user address from the arena base     before returning the range to the arena free tree. When the scalar value is below the low 32 bits of the     arena base, full_uaddr falls below user_vm_start. The existing upper-end clipping then turns this into an     out-of-range free-tree offset. A later allocation can reuse that offset and return an address below the     arena mapping. Reject such frees before computing the clipped range. (CVE-2026-93045)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
365279	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-3196)	Nessus	Amazon Linux Local Security Checks	Local	medium
364137	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500374)	Nessus	Oracle Linux Local Security Checks	Local	high
362907	Debian dla-4817 : ata-modules-6.12.107+deb12-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
467652	Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19216.700.7	Tenable Cloud Security	Google COS Security Checks	Local	high
467652	Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19216.700.7	Tenable Self-Hosted Container Security	Google COS Security Checks	Local	high
351155	Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
347351	Linux Distros Unpatched Vulnerability : CVE-2026-93045	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-93045

high

Tenable Plugins

medium

high

high

high

high

high

high