x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h
In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h get_align_mask() returns huge_page_mask_align() for hugetlbfs, but get_align_bits() adds va_align.bits regardless, so vm_unmapped_area() returns an address off the huge page boundary and __unmap_hugepage_range() hits BUG_ON(start & ~huge_page_mask(h)) at teardown. This can be triggered on Carrizo and FX-8370E, both hstates. Pass the file to get_align_bits() and skip the randomisation for hugetlbfs. [ bp: Massage commit message. ]
CVE-2026-98729
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98729
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0",
"lessThan": "fe23680e6f1d52b8cc45d77bf7c54249508a81c7",
"versionType": "git"
},
{
"status": "affected",
"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0",
"lessThan": "b46b2e2de47ca9449532b0a7110ed99f79061d6e",
"versionType": "git"
},
{
"status": "affected",
"version": "1317a5e7f7b1336eac4097f0ef4f5cd7ae72f1d0",
"lessThan": "d2457a7e2727dc747a61a50d65c2f259afce8c45",
"versionType": "git"
}
],
"programFiles": [
"arch/x86/kernel/sys_x86_64.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/x86/kernel/sys_x86_64.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98729
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38706 · Revision 1
- Added to Heist Feed
- Publisher date