PT-2025-30857 · Linux+6 · Linux Kernel+6
Published
2025-01-01
·
Updated
2026-04-20
·
CVE-2025-38443
CVSS v3.1
7.8
High
| Vector | AV: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
The Linux kernel contains a use-after-free issue within the network block device (nbd) module. Specifically, the
nbd genl connect() function does not properly stop the device on certain error paths after nbd start device() has been called. This leads to the recv work function continuing to use configuration data after it has been freed, resulting in a use-after-free condition. The issue occurs when nbd->config is put in the error path while recv work continues to use it.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
Astra Linux
Debian
Linux Kernel
Linuxmint
Red Os
Suse
Ubuntu