CVE-2025-37927 (GCVE-0-2025-37927)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2025-11-03 19:57
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid There is a string parsing logic error which can lead to an overflow of hid or uid buffers. Comparing ACPIID_LEN 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 ACPIID_LEN + 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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < 2b65060c84ee4d8dc64fae6d2728b528e9e832e1 (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < a65ebfed65fa62797ec1f5f1dcf7adb157a2de1e (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < 466d9da267079a8d3b69fa72dfa3a732e1f6dbb5 (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < c3f37faa71f5d26dd2144b3f2b14525ec8f5e41f (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < 13d67528e1ae4486e9ab24b70122fab104c73c29 (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < 10d901a95f8e766e5aa0bb9a983fb41271f64718 (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < c8bdfc0297965bb13fa439d36ca9c4f7c8447f0f (git)
Affected: ca3bf5d47cec8b7614bcb2e9132c40081d6d81db , < 8dee308e4c01dea48fc104d37f92d5b58c50b96c (git)
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    Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 5.4.294 , ≤ 5.4.* (semver)
Unaffected: 5.10.238 , ≤ 5.10.* (semver)
Unaffected: 5.15.182 , ≤ 5.15.* (semver)
Unaffected: 6.1.138 , ≤ 6.1.* (semver)
Unaffected: 6.6.90 , ≤ 6.6.* (semver)
Unaffected: 6.12.28 , ≤ 6.12.* (semver)
Unaffected: 6.14.6 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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For example if the length of hid\\nstring is 4 and the length of the uid string is 260, the length of str\\nwill be equal to ACPIID_LEN + 1 but uid string will overflow uid buffer\\nwhich size is 256.\\n\\nThe same applies to the hid string with length 13 and uid string with\\nlength 250.\\n\\nCheck the length of hid and uid strings separately to prevent\\nbuffer overflow.\\n\\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/amd: Arreglar desbordamiento de b\u00fafer potencial en parse_ivrs_acpihid Hay un error de l\u00f3gica de an\u00e1lisis de cadenas que puede provocar un desbordamiento de los b\u00faferes hid o uid. La comparaci\u00f3n de ACPIID_LEN con la longitud total de una cadena no tiene en cuenta las longitudes de los b\u00faferes hid y uid individuales, por lo que la comprobaci\u00f3n es insuficiente en algunos casos. 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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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