High 7.0Published Jul 25, 2025

CVE-2025-38460atm: clip: Fix potential null-ptr-deref in to_atmarpd().

Updated under an hour ago (Oct 27, 2026, 4:00 AM ET)

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It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a4c5785feb979cd996a99cfaad8bf353b2e79301; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3251ce3979f41bd228f77a7615f9dd616d06a110; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 06935c50cfa3ac57cce80bba67b6d38ec1406e92; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 36caab990b69ef4eec1d81c52a19f080b7daa059; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f58e4270c73e7f086322978d585ea67c8076ce49; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 706cc36477139c1616a9b2b96610a8bb520b7119	CNA record
linux linux_kernel linux:linux_kernel	from 2.6.13 before 5.4.296; from 5.5 before 5.10.240; from 5.11 before 5.15.189; from 5.16 before 6.1.146; from 6.2 before 6.6.99; from 6.7 before 6.12.39; from 6.13 before 6.15.7; 2.6.12; and 9 more ranges	NVD
debian debian_linux debian:debian_linux	11.0	NVD

References

References

https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301	patch
https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9	patch
https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110	patch
https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57	patch
https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92	patch
https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059	patch
https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49	patch
https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119	patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	third-party-advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.