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CVE-2025-38460
MEDIUM5.5
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().
CVE Details
CVSS v3.1 Score5.5
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published7/25/2025
Last Modified12/22/2025
Sourcenvd
Honeypot Sightings0
Affected Products
debian:debian_linuxlinux:linux_kernel
Weaknesses (CWE)
CWE-476
References
https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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