CVE-2025-21964
cifs: Fix integer overflow while processing acregmax mount option
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
5780464614f6abe6026f00cf5a0777aa453ba450 < a13351624a6af8d91398860b8c9d4cf6c8e63de5 5780464614f6abe6026f00cf5a0777aa453ba450 < dd190168e60ac15408f074a1fe0ce36aff34027b 5780464614f6abe6026f00cf5a0777aa453ba450 < 0252c33cc943e9e48ddfafaa6b1eb72adb68a099 5780464614f6abe6026f00cf5a0777aa453ba450 < 833f2903eb8b70faca7967319e580e9ce69729fc 5780464614f6abe6026f00cf5a0777aa453ba450 < 5f500874ab9b3cc8c169c2ab49f00b838520b9c5 5780464614f6abe6026f00cf5a0777aa453ba450 < 7489161b1852390b4413d57f2457cd40b34da6cc
Linux / Linux
5.12
References
git.kernel.org: https://git.kernel.org/stable/c/a13351624a6af8d91398860b8c9d4cf6c8e63de5 git.kernel.org: https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027b git.kernel.org: https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099 git.kernel.org: https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fc git.kernel.org: https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5 git.kernel.org: https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6cc lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html