PT-2025-44132 · Linux+4 · Linux Kernel+4
Published
2025-09-16
·
Updated
2026-05-26
·
CVE-2025-40064
CVSS v2.0
6.0
Medium
| Vector | AV:L/AC:H/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a use-after-free flaw in the
pnet find base ndev() function within the smc module. The issue occurs when a network device (net device) is freed while still being referenced, specifically during the connect() process. This can lead to a system crash. The vulnerability was identified through syzbot testing, which reported a use-after-free condition when the device was accessed after being freed. The root cause involves improper reference counting and handling of the device structure during network connection establishment.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Rocky Linux
Ubuntu