CVE-2025-38460

MEDIUM EPSS 5.8%
Published Jul 25, 202511mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 25, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

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().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 18

VendorProductVersionRange
linuxlinux_kernel*≥2.6.13  –  <5.4.296
linuxlinux_kernel*≥5.5  –  <5.10.240
linuxlinux_kernel*≥5.11  –  <5.15.189
linuxlinux_kernel*≥5.16  –  <6.1.146
linuxlinux_kernel*≥6.2  –  <6.6.99
linuxlinux_kernel*≥6.7  –  <6.12.39
linuxlinux_kernel*≥6.13  –  <6.15.7
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49
    Patch