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CVE-2025-21945

nvd nist
Published: Apr 1, 2025Modified: Jun 17, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2_lock If smb_lock->zero_len has value, ->llist of smb_lock is not delete and flock is old one. It will cause use-after-free on error handling routine.

Affected (9)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 5.15 to 6.1.131
Linux Kernel
From 6.13 to 6.13.7
Linux Kernel
From 6.2 to 6.6.83
Linux Kernel
From 6.7 to 6.12.19
Linux Kernel
Version 6.14 rc1
Linux Kernel
Version 6.14 rc2
Linux Kernel
Version 6.14 rc3
Linux Kernel
Version 6.14 rc4
Linux Kernel
Version 6.14 rc5

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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