CVE-2025-39872 — hsr: hold rcu and dev lock for hsr_get_port_ndev
In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to h…
Published: 2025-09-23 · CVSS: 7.8 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: hsr: hold rcu and dev lock for hsr_get_port_ndev hsr_get_port_ndev calls hsr_for_each_port, which need to hold rcu lock. On the other hand, before return the port device, we need to hold the device reference to avoid UaF in the caller function.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7