{"dataType": "CVE_RECORD", "dataVersion": "5.1", "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": "2025-09-04T15:32:42.607Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-04T15:32:42.607Z"}, "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-rc1", "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-rc1"}]}]}], "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2025-38688", "lastModified": "2025-09-05T17:47:24.833", "metrics": {}, "published": "2025-09-04T16:15:36.863", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/79fad1917802c28de51a479318a056a6fbe3e2f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b42497e3c0e74db061eafad41c0cd7243c46436b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d19b817540c0abe84854a64ee9ee34cecc3bbeef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e42a046bb41dcdde4f766a17d8211842007ed537"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ebb6021560b94649bec6b8faba6fe0dca2218e81"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: iommufd: Prevent ALIGN() overflow", "id": "2393196", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393196"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38688", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38688\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38688\nhttps://lore.kernel.org/linux-cve-announce/2025090448-CVE-2025-38688-6e94@gregkh/T"], "threat_severity": "Moderate"}

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