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CVE-2024-50086

nvd nist
Published: Oct 29, 2024Modified: Jun 17, 2026

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7.0
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.0 / Impact: 5.9
Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix user-after-free from session log off There is racy issue between smb2 session log off and smb2 session setup. It will cause user-after-free from session log off. This add session_lock when setting SMB2_SESSION_EXPIRED and referece count to session struct not to free session while it is being used.

Affected (6)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
6 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
Before 6.1.114
Linux Kernel
From 6.2 to 6.6.58
Linux Kernel
From 6.7 to 6.11.5
Linux Kernel
Version 6.12 rc1
Linux Kernel
Version 6.12 rc2
Linux Kernel
Version 6.12 rc3

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 (6)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.