CVE-2025-38460
High
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().
SeverityHigh
CVSS7.0
Exploit probability—
Product
Linux Kernel
PublishedJul 25, 2025
First seenJul 25, 2025
How to fix
Update
- linux linux_kernel5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.13 ≤ v < 5.4.296, 5.5 ≤ v < 5.10.240, 5.11 ≤ v < 5.15.189, 5.16 ≤ v < 6.1.146, 6.2 ≤ v < 6.6.99, 6.7 ≤ v < 6.12.39, 6.13 ≤ v < 6.15.7, 2.6.12, 6.16 | 5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7 |
| debian debian_linux | 11.0 | — |
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