{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38688", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.032Z", "datePublished": "2025-09-04T15:32:42.607Z", "dateUpdated": "2026-05-11T21:33:03.840Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:33:03.840Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Prevent ALIGN() overflow\n\nWhen allocating IOVA the candidate range gets aligned to the target\nalignment. If the range is close to ULONG_MAX then the ALIGN() can\nwrap resulting in a corrupted iova.\n\nOpen code the ALIGN() using get_add_overflow() to prevent this.\nThis simplifies the checks as we don't need to check for length earlier\neither.\n\nConsolidate the two copies of this code under a single helper.\n\nThis bug would allow userspace to create a mapping that overlaps with some\nother mapping or a reserved range."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "versions": [{"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "d19b817540c0abe84854a64ee9ee34cecc3bbeef", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "ebb6021560b94649bec6b8faba6fe0dca2218e81", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "e42a046bb41dcdde4f766a17d8211842007ed537", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "79fad1917802c28de51a479318a056a6fbe3e2f2", "status": "affected", "versionType": "git"}, {"version": "51fe6141f0f64ae0bbc096a41a07572273e8c0ef", "lessThan": "b42497e3c0e74db061eafad41c0cd7243c46436b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/io_pagetable.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.103", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.43", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.11", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.2", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.6.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.16.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d19b817540c0abe84854a64ee9ee34cecc3bbeef"}, {"url": "https://git.kernel.org/stable/c/ebb6021560b94649bec6b8faba6fe0dca2218e81"}, {"url": "https://git.kernel.org/stable/c/e42a046bb41dcdde4f766a17d8211842007ed537"}, {"url": "https://git.kernel.org/stable/c/79fad1917802c28de51a479318a056a6fbe3e2f2"}, {"url": "https://git.kernel.org/stable/c/b42497e3c0e74db061eafad41c0cd7243c46436b"}], "title": "iommufd: Prevent ALIGN() overflow", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"created": "2025-09-05T14:02:33.217361+00:00", "updated": "2025-09-05T14:02:33.217411+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}