Answer in brief
CVE-2025-38676 records a Unknown severity vulnerability in iommu/amd: Avoid stack buffer overflow from kernel cmdline. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f2a5ec7f7b28f9b9cd5fac232ff51019a7f7b9e9 <a732502bf3bbe859613b6d7b2b0313b11f0474ac || >=c513043e0afe6a8ba79d00af358655afabb576d2 <0ad8509b468fa1058f4f400a1829f29e4ccc4de8 || >=2ae19ac3ea82a5b87a81c10adbb497c9e58bdd60 <9ff52d3af0ef286535749e14e3fe9eceb39a8349 || >=b6b26d86c61c441144c72f842f7469bb686e1211 <8f80c633cba144f721d38d9380f23d23ab7db10e || >=b6b26d86c61c441144c72f842f7469bb686e1211 <4bdb0f78bddbfa77d3ab458a21dd9cec495d317a || >=b6b26d86c61c441144c72f842f7469bb686e1211 <736db11c86f03e717fc4bf771d05efdf10d23acb || >=b6b26d86c61c441144c72f842f7469bb686e1211 <8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec || 5e97dc748d13fad582136ba0c8cec215c7aeeb17 || 63cd11165e5e0ea2012254c764003eda1f9adb7d || >=5.10.175 <5.10.241 || >=5.15.103 <5.15.190 || >=6.1.16 <6.1.149 || >=5.4.237 <5.5 || >=6.2.3 <6.3 | a732502bf3bbe859613b6d7b2b0313b11f0474ac, 0ad8509b468fa1058f4f400a1829f29e4ccc4de8, 9ff52d3af0ef286535749e14e3fe9eceb39a8349, 8f80c633cba144f721d38d9380f23d23ab7db10e, 4bdb0f78bddbfa77d3ab458a21dd9cec495d317a, 736db11c86f03e717fc4bf771d05efdf10d23acb, 8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec, 5.10.241, 5.15.190, 6.1.149, 5.5, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
Published upstream
Aug 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.