CVE-2023-1195

Published: May 18, 2023Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

Affected (3)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 6.1
Linux Linux Kernel	Version 6.1 rc1
Linux Linux Kernel	Version 6.1 rc2

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://github.com/torvalds/linux/commit/153695d36ead0ccc4d0256953c751cabf673e621

Source: secalert@redhat.com

Patch

https://github.com/torvalds/linux/commit/153695d36ead0ccc4d0256953c751cabf673e621

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

Timeline

No history available yet.