CVE-2025-38676
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Avoid stack buffer overflow from kernel cmdline While the kernel command line is considered trusted in most environments, avoid writing 1 byte past the end of "acpiid" if the "str" argument is maximum length.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0ad8509b468fa1058f4f400a1829f29e4ccc4de8 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0ad8509b468fa1058f4f400a1829f29e4ccc4de8Patch
- https://git.kernel.org/stable/c/4bdb0f78bddbfa77d3ab458a21dd9cec495d317aPatch
- https://git.kernel.org/stable/c/736db11c86f03e717fc4bf771d05efdf10d23acbPatch
- https://git.kernel.org/stable/c/8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdecPatch
- https://git.kernel.org/stable/c/8f80c633cba144f721d38d9380f23d23ab7db10ePatch
- https://git.kernel.org/stable/c/9ff52d3af0ef286535749e14e3fe9eceb39a8349Patch
- https://git.kernel.org/stable/c/a732502bf3bbe859613b6d7b2b0313b11f0474acPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlAdvisory