CVE-2025-37927

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Source
https://cve.org/CVERecord?id=CVE-2025-37927
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37927.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37927
Downstream
Related
Published
2025-05-20T15:21:53.973Z
Modified
2026-03-20T12:42:34.355655Z
Summary
iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/amd: Fix potential buffer overflow in parseivrsacpihid

There is a string parsing logic error which can lead to an overflow of hid or uid buffers. Comparing ACPIIDLEN against a total string length doesn't take into account the lengths of individual hid and uid buffers so the check is insufficient in some cases. For example if the length of hid string is 4 and the length of the uid string is 260, the length of str will be equal to ACPIIDLEN + 1 but uid string will overflow uid buffer which size is 256.

The same applies to the hid string with length 13 and uid string with length 250.

Check the length of hid and uid strings separately to prevent buffer overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37927.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ca3bf5d47cec8b7614bcb2e9132c40081d6d81db
Fixed
2b65060c84ee4d8dc64fae6d2728b528e9e832e1
Fixed
a65ebfed65fa62797ec1f5f1dcf7adb157a2de1e
Fixed
466d9da267079a8d3b69fa72dfa3a732e1f6dbb5
Fixed
c3f37faa71f5d26dd2144b3f2b14525ec8f5e41f
Fixed
13d67528e1ae4486e9ab24b70122fab104c73c29
Fixed
10d901a95f8e766e5aa0bb9a983fb41271f64718
Fixed
c8bdfc0297965bb13fa439d36ca9c4f7c8447f0f
Fixed
8dee308e4c01dea48fc104d37f92d5b58c50b96c

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37927.json"