PT-2025-29045 · Linux+6 · Linux Kernel+6

Anubis

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Published

2025-07-10

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Updated

2026-04-20

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CVE-2025-38323

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)
Description: A use-after-free issue was identified in the net/atm/lec.c component of the Linux kernel. Specifically, an error path in the lecd attach() function could result in a dangling pointer within the dev lec[] array. A mutex was added to protect uses of dev lecp[] from lecd attach(), lec vcc attach(), and lec mcast attach(). This issue was discovered by syzbot during testing. The vulnerability manifests in the lane ioctl() function and can be triggered through the /proc/net/atm/lec interface.
Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

NULL Pointer Dereference

Weakness Enumeration

Related Identifiers

AZL-64938
BDU:2025-10735
BDU:2025-10737
CVE-2025-38323
DLA-4327-1
DLA-4328-1
DSA-5973-1
ECHO-3FB5-1453-4E2D
MGASA-2025-0218
MGASA-2025-0219
OPENSUSE-SU-2025:20081-1
SUSE-SU-2025:02846-1
SUSE-SU-2025:02853-1
SUSE-SU-2025:02923-1
SUSE-SU-2025:02969-1
SUSE-SU-2025:02996-1
SUSE-SU-2025:02997-1
SUSE-SU-2025:03011-1
SUSE-SU-2025:03023-1
SUSE-SU-2025:03283-1
SUSE-SU-2025:03310-1
SUSE-SU-2025:03314-1
SUSE-SU-2025:03344-1
SUSE-SU-2025:03383-1
SUSE-SU-2025:03384-1
SUSE-SU-2025:20577-1
SUSE-SU-2025:20586-1
SUSE-SU-2025:20601-1
SUSE-SU-2025:20602-1
SUSE-SU-2025:21074-1
SUSE-SU-2025:21139-1
SUSE-SU-2025:21179-1
SUSE-SU-2025_02846-1
SUSE-SU-2025_02853-1
SUSE-SU-2025_02969-1
SUSE-SU-2025_02996-1
SUSE-SU-2025_02997-1
SUSE-SU-2025_03011-1
SUSE-SU-2025_03023-1
SUSE-SU-2025_03310-1
SUSE-SU-2025_03314-1
SUSE-SU-2025_03344-1
USN-7856-1
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu