{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49991", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.386Z", "datePublished": "2025-06-18T11:00:51.745Z", "dateUpdated": "2025-06-18T11:00:51.745Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-06-18T11:00:51.745Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte\n\nIn MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page\ncache are installed in the ptes. But hugepage_add_new_anon_rmap is called\nfor them mistakenly because they're not vm_shared. This will corrupt the\npage->mapping used by page cache code."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/hugetlb.c"], "versions": [{"version": "f619147104c8ea71e120e4936d2b68ec11a1e527", "lessThan": "da60ddd80d09f8371fbba1a238a4b318d13ba698", "status": "affected", "versionType": "git"}, {"version": "f619147104c8ea71e120e4936d2b68ec11a1e527", "lessThan": "3ada1b3e58db255a14ec73a59d7913e84dc5a8a4", "status": "affected", "versionType": "git"}, {"version": "f619147104c8ea71e120e4936d2b68ec11a1e527", "lessThan": "ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/hugetlb.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.65", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.6", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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": "5.13", "versionEndExcluding": "5.15.65"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698"}, {"url": "https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4"}, {"url": "https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6"}], "title": "mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte\n\nIn MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page\ncache are installed in the ptes. But hugepage_add_new_anon_rmap is called\nfor them mistakenly because they're not vm_shared. This will corrupt the\npage->mapping used by page cache code."}], "id": "CVE-2022-49991", "lastModified": "2025-06-18T13:46:52.973", "metrics": {}, "published": "2025-06-18T11:15:26.753", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "kernel: mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte", "id": "2373639", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373639"}, "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": "verified"}, "cwe": "CWE-915", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte\nIn MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page\ncache are installed in the ptes. But hugepage_add_new_anon_rmap is called\nfor them mistakenly because they're not vm_shared. This will corrupt the\npage->mapping used by page cache code."], "name": "CVE-2022-49991", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "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-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49991\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49991\nhttps://lore.kernel.org/linux-cve-announce/2025061824-CVE-2022-49991-c44f@gregkh/T"], "threat_severity": "Moderate"}