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CVE-2025-21963

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

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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

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acdirmax mount option User-provided mount parameter acdirmax of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected (11)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 5.12 to 5.15.180
Linux Kernel
From 5.16 to 6.1.132
Linux Kernel
From 6.13 to 6.13.8
Linux Kernel
From 6.2 to 6.6.84
Linux Kernel
From 6.7 to 6.12.20
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
Linux Kernel
Version 6.14 rc6

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (7)

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

Timeline

No history available yet.