CVE-2025-21964 Information

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.

Reference

https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099 https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5 https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6cc https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fc https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027b