CVE-2025-21964
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acregmax mount option User-provided mount parameter acregmax of type u32 is intended to have an upper limit, but before it is validated, the…
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acregmax mount option User-provided mount parameter acregmax 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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099Patch
- https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5Patch
- https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6ccPatch
- https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fcPatch
- https://git.kernel.org/stable/c/a13351624a6af8d91398860b8c9d4cf6c8e63de5Patch
- https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027bPatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.