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().
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().
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4327-1 | linux security update |
Debian DLA |
DLA-4328-1 | linux-6.1 security update |
Debian DSA |
DSA-5973-1 | linux security update |
Debian DSA |
DSA-5975-1 | linux security update |
EUVD |
EUVD-2025-22681 | 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(). |
Ubuntu USN |
USN-7774-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7774-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7774-3 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7775-1 | Linux kernel (Azure FIPS) vulnerabilities |
Ubuntu USN |
USN-7775-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7776-1 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-7775-3 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7774-4 | Linux kernel (KVM) vulnerabilities |
Ubuntu USN |
USN-7774-5 | Linux kernel (NVIDIA Tegra IGX) vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 03 Nov 2025 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Tue, 29 Jul 2025 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Sat, 26 Jul 2025 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Fri, 25 Jul 2025 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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(). | |
| Title | atm: clip: Fix potential null-ptr-deref in to_atmarpd(). | |
| References |
|
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-11-03T17:38:19.880Z
Reserved: 2025-04-16T04:51:24.019Z
Link: CVE-2025-38460
No data.
Status : Awaiting Analysis
Published: 2025-07-25T16:15:31.787
Modified: 2025-11-03T18:16:21.393
Link: CVE-2025-38460
OpenCVE Enrichment
Updated: 2025-07-26T11:22:02Z
Debian DLA
Debian DSA
EUVD
Ubuntu USN