In the Linux kernel, the following vulnerability has been resolved: net: hsr: free learned nodes on device setup failure hsr_dev_finalize() can fail after a lower-device RX handler has already been registered (slave A is added before the failable slave B and interlink adds). RX handlers run in softirq regardless of the master's state, so frames received in that window can learn dynamic nodes into node_db, and the error unwind never releases them. Free both owned dynamic databases in the unwind, mirroring hsr_dellink(). proxy_node_db is provably empty on every current error exit (only interlink RX feeds it, and the interlink add is the last failable step) and is freed for symmetry. The order is safe: hsr_del_port() unregisters each RX handler with synchronize_net() before hsr_del_nodes() runs, which removes remaining entries with list_del_rcu() and defers their release with call_rcu() for readers already under RCU.

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

  - net: hsr: free learned nodes on device setup failure hsr_dev_finalize() can fail after a lower-device RX     handler has already been registered (slave A is added before the failable slave B and interlink adds). RX     handlers run in softirq regardless of the master's state, so frames received in that window can learn     dynamic nodes into node_db, and the error unwind never releases them. Free both owned dynamic databases in     the unwind, mirroring hsr_dellink(). proxy_node_db is provably empty on every current error exit (only     interlink RX feeds it, and the interlink add is the last failable step) and is freed for symmetry. The     order is safe: hsr_del_port() unregisters each RX handler with synchronize_net() before hsr_del_nodes()     runs, which removes remaining entries with list_del_rcu() and defers their release with call_rcu() for     readers already under RCU. (CVE-2026-100071)

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

ID	Name	Product	Family	Type	Severity
366919	Debian dla-4841 : ata-modules-6.1.0-53-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
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
351155	Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
350750	Linux Distros Unpatched Vulnerability : CVE-2026-100071	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-100071

high

Tenable Plugins

high

high

high

high

high