CVE WatchJul 30, 2026

CVE-2025-38460

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is pr

CVSS

7.0

High

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Jul 25, 2025 · Last modified: Jul 30, 2026 · CWE-476

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-042026-07-31

Technical description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().

Official references

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