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CVE-2025-38460

5.5 medium SSVC exploitation: none Modified

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().

Fix

Patch, vendor advisory and mitigation references on NVD 8

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.5 · linux, debianNVD modified 2026-10-15 22:18

Affected (CPE criteria) 12

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References 10