DEBIAN-CVE-2025-21963
Record from OSV · Published April 1, 2025
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:12 | 6.1.133-1 |
| linux | Debian:14 | 6.12.20-1 |
| linux | Debian:13 | 6.12.20-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 6.1.99-1, 0, 6.1.106-1 |
| Debian:14 | linux | 0 |
| Debian:13 | linux | 0 |
Timeline
- Apr 1, 2025 CVE Published
- Sep 1, 2026 CVE Updated
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vulnetix vdb vuln DEBIAN-CVE-2025-21963
vulnetix vdb fixes DEBIAN-CVE-2025-21963
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