CVE-2025-39872 — Linux vulnerability
5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 93.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 23
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linuxef964411c8ca775967355d855abc56aeaca3c867 — 9433ba79c2ec3ec7c9a711748701549339c3438c+3
Patches
🔴Vulnerability Details
2OSV▶
CVE-2025-39872: 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_e↗2025-09-23
GHSA▶
GHSA-mmm9-rxc2-w4wp: 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↗2025-09-23