CVE-2026-72173 (GCVE-0-2026-72173)
Vulnerability from cvelistv5
Published
2026-08-15 05:53
Modified
2026-08-17 05:09
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
Patch series "mm/hmm: A fix and a selftest", v3.
Patch 1 fixes a stale warning present from the time when only migration
softleaf entries were supported at the PMD level.
Patch 2 adds some code into hmm-tests.c which exercises the pagemap path
for PMD device-private entries.
This patch (of 2):
pagemap_pmd_range_thp() warns if a non-present PMD is not a migration
entry. This became false once device-private entries at the PMD level
were added.
Therefore, remove the stale migration-only assertion.
References
Impacted products
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"containers": {
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.19"
},
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"version": "7.1.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
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"vulnerable": true
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc/task_mmu: do not warn on seeing non-migration pmd entry\n\nPatch series \"mm/hmm: A fix and a selftest\", v3.\n\nPatch 1 fixes a stale warning present from the time when only migration\nsoftleaf entries were supported at the PMD level.\n\nPatch 2 adds some code into hmm-tests.c which exercises the pagemap path\nfor PMD device-private entries.\n\n\nThis patch (of 2):\n\npagemap_pmd_range_thp() warns if a non-present PMD is not a migration\nentry. This became false once device-private entries at the PMD level\nwere added.\n\nTherefore, remove the stale migration-only assertion."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:09:35.315Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/319caaca072adc564ac9c5357ed013909f23d5ab"
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{
"url": "https://git.kernel.org/stable/c/cd1fc0e3c1f67c0c31dfc215e5d9b771133dedc0"
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"title": "fs/proc/task_mmu: do not warn on seeing non-migration pmd entry",
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"cveId": "CVE-2026-72173",
"datePublished": "2026-08-15T05:53:38.543Z",
"dateReserved": "2026-08-09T03:40:39.910Z",
"dateUpdated": "2026-08-17T05:09:35.315Z",
"state": "PUBLISHED"
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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