CVE-2026-98729

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98729", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.366Z", "datePublished": "2026-10-18T15:47:06.633Z", "dateUpdated": "2026-10-19T09:24:39.819Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:24:39.819Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Don't apply va_align to hugetlb mappings on AMD F15h\n\nget_align_mask() returns huge_page_mask_align() for hugetlbfs, but get_align_bits()\nadds va_align.bits regardless, so vm_unmapped_area() returns an address off the huge\npage boundary and __unmap_hugepage_range() hits BUG_ON(start & ~huge_page_mask(h)) at\nteardown.\n\nThis can be triggered on Carrizo and FX-8370E, both hstates.\n\nPass the file to get_align_bits() and skip the randomisation for hugetlbfs.\n\n [ bp: Massage commit message. ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/sys_x86_64.c"], "versions": [{"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "lessThan": "fe23680e6f1d52b8cc45d77bf7c54249508a81c7", "status": "affected", "versionType": "git"}, {"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "lessThan": "b46b2e2de47ca9449532b0a7110ed99f79061d6e", "status": "affected", "versionType": "git"}, {"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "lessThan": "d2457a7e2727dc747a61a50d65c2f259afce8c45", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/sys_x86_64.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.13", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fe23680e6f1d52b8cc45d77bf7c54249508a81c7"}, {"url": "https://git.kernel.org/stable/c/b46b2e2de47ca9449532b0a7110ed99f79061d6e"}, {"url": "https://git.kernel.org/stable/c/d2457a7e2727dc747a61a50d65c2f259afce8c45"}], "title": "x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/x86/kernel/sys_x86_64.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fe23680e6f1d52b8cc45d77bf7c54249508a81c7", "status": "affected", "version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "versionType": "git"}, {"lessThan": "b46b2e2de47ca9449532b0a7110ed99f79061d6e", "status": "affected", "version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "versionType": "git"}, {"lessThan": "d2457a7e2727dc747a61a50d65c2f259afce8c45", "status": "affected", "version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/x86/kernel/sys_x86_64.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Don't apply va_align to hugetlb mappings on AMD F15h\n\nget_align_mask() returns huge_page_mask_align() for hugetlbfs, but get_align_bits()\nadds va_align.bits regardless, so vm_unmapped_area() returns an address off the huge\npage boundary and __unmap_hugepage_range() hits BUG_ON(start & ~huge_page_mask(h)) at\nteardown.\n\nThis can be triggered on Carrizo and FX-8370E, both hstates.\n\nPass the file to get_align_bits() and skip the randomisation for hugetlbfs.\n\n [ bp: Massage commit message. ]"}], "id": "CVE-2026-98729", "lastModified": "2026-10-19T10:19:37.053", "metrics": {}, "published": "2026-10-18T16:17:26.530", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b46b2e2de47ca9449532b0a7110ed99f79061d6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2457a7e2727dc747a61a50d65c2f259afce8c45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fe23680e6f1d52b8cc45d77bf7c54249508a81c7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h", "id": "2555163", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555163"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-617", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nx86/mm: Don't apply va_align to hugetlb mappings on AMD F15h\nget_align_mask() returns huge_page_mask_align() for hugetlbfs, but get_align_bits()\nadds va_align.bits regardless, so vm_unmapped_area() returns an address off the huge\npage boundary and __unmap_hugepage_range() hits BUG_ON(start & ~huge_page_mask(h)) at\nteardown.\nThis can be triggered on Carrizo and FX-8370E, both hstates.\nPass the file to get_align_bits() and skip the randomisation for hugetlbfs.\n[ bp: Massage commit message. ]", "A flaw was found in the Linux kernel. On systems utilizing specific AMD processors, improper virtual address alignment for huge page memory mappings can allow a local user to cause a Denial of Service (DoS). When unmapping these misaligned memory ranges during teardown, the kernel encounters an internal assertion failure, resulting in a system crash."], "name": "CVE-2026-98729", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98729\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98729\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98729.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0,fe23680e6f1d52b8cc45d77bf7c54249508a81c7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0,b46b2e2de47ca9449532b0a7110ed99f79061d6e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0,d2457a7e2727dc747a61a50d65c2f259afce8c45)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.56,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-18T19:15:14.231908+00:00", "updated": "2026-10-23T22:15:17.037578+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}