CVE-2025-38676

iommu/amd: Avoid stack buffer overflow from kernel cmdline

State: Published
Severity: Not scored
Published: Aug 26, 2025
Updated: May 23, 2026
Reserved: Apr 16, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f2a5ec7f7b28f9b9cd5fac232ff51019a7f7b9e9 to before a732502bf3bbe859613b6d7b2b0313b11f0474acAffected c513043e0afe6a8ba79d00af358655afabb576d2 to before 0ad8509b468fa1058f4f400a1829f29e4ccc4de8Affected 2ae19ac3ea82a5b87a81c10adbb497c9e58bdd60 to before 9ff52d3af0ef286535749e14e3fe9eceb39a8349Affected b6b26d86c61c441144c72f842f7469bb686e1211 to before 8f80c633cba144f721d38d9380f23d23ab7db10eAffected b6b26d86c61c441144c72f842f7469bb686e1211 to before 4bdb0f78bddbfa77d3ab458a21dd9cec495d317aAffected b6b26d86c61c441144c72f842f7469bb686e1211 to before 736db11c86f03e717fc4bf771d05efdf10d23acbAffected b6b26d86c61c441144c72f842f7469bb686e1211 to before 8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdecAffected 5e97dc748d13fad582136ba0c8cec215c7aeeb17Affected 63cd11165e5e0ea2012254c764003eda1f9adb7dAffected 5.10.175 to before 5.10.241Affected 5.15.103 to before 5.15.190Affected 6.1.16 to before 6.1.149Affected 5.4.237 to before 5.5Affected 6.2.3 to before 6.3Affected
LinuxLinux	6.3Affected before 6.3Not affected 5.10.241 through 5.10.Not affected 5.15.190 through 5.15.Not affected 6.1.149 through 6.1.Not affected 6.6.103 through 6.6.Not affected 6.12.44 through 6.12.Not affected 6.16.4 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

f2a5ec7f7b28f9b9cd5fac232ff51019a7f7b9e9 to before a732502bf3bbe859613b6d7b2b0313b11f0474acAffected
c513043e0afe6a8ba79d00af358655afabb576d2 to before 0ad8509b468fa1058f4f400a1829f29e4ccc4de8Affected
2ae19ac3ea82a5b87a81c10adbb497c9e58bdd60 to before 9ff52d3af0ef286535749e14e3fe9eceb39a8349Affected
b6b26d86c61c441144c72f842f7469bb686e1211 to before 8f80c633cba144f721d38d9380f23d23ab7db10eAffected
b6b26d86c61c441144c72f842f7469bb686e1211 to before 4bdb0f78bddbfa77d3ab458a21dd9cec495d317aAffected
b6b26d86c61c441144c72f842f7469bb686e1211 to before 736db11c86f03e717fc4bf771d05efdf10d23acbAffected
b6b26d86c61c441144c72f842f7469bb686e1211 to before 8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdecAffected
5e97dc748d13fad582136ba0c8cec215c7aeeb17Affected
63cd11165e5e0ea2012254c764003eda1f9adb7dAffected
5.10.175 to before 5.10.241Affected
5.15.103 to before 5.15.190Affected
6.1.16 to before 6.1.149Affected
5.4.237 to before 5.5Affected
6.2.3 to before 6.3Affected

LinuxLinux

6.3Affected
before 6.3Not affected
5.10.241 through 5.10.*Not affected
5.15.190 through 5.15.*Not affected
6.1.149 through 6.1.*Not affected
6.6.103 through 6.6.*Not affected
6.12.44 through 6.12.*Not affected
6.16.4 through 6.16.*Not affected
6.17 and laterNot affected

References

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