CVE-2026-53207 (GCVE-0-2026-53207)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI?
Title
mm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison
Two concurrent madvise(MADV_HWPOISON) calls on the same hugetlb page can
trigger a recursive spinlock self-deadlock (AA deadlock) on hugetlb_lock
when racing with a concurrent unmap:
thread#0 thread#1
-------- --------
madvise(folio, MADV_HWPOISON)
-> poisons the folio successfully
madvise(folio, MADV_HWPOISON) unmap(folio)
try_memory_failure_hugetlb
get_huge_page_for_hwpoison
spin_lock_irq(&hugetlb_lock) <- held
__get_huge_page_for_hwpoison
hugetlb_update_hwpoison()
-> MF_HUGETLB_FOLIO_PRE_POISONED
goto out:
folio_put()
refcount: 1 -> 0
free_huge_folio()
spin_lock_irqsave(&hugetlb_lock)
-> AA DEADLOCK!
The out: path in __get_huge_page_for_hwpoison() calls folio_put() to drop
the GUP reference while the hugetlb_lock is still held by the hugetlb.c
wrapper get_huge_page_for_hwpoison(). If concurrent unmap has released
the page table mapping reference, folio_put() drops the folio refcount to
zero, triggering free_huge_folio() which attempts to re-acquire the
non-recursive hugetlb_lock.
Fix this by moving hugetlb_lock acquisition from the hugetlb.c wrapper
into get_huge_page_for_hwpoison(). Place spin_unlock_irq() before the
folio_put() at the out: label so the folio is always released outside the
lock.
[akpm@linux-foundation.org: fix race, rename label per Miaohe]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
405ce051236cc65b30bbfe490b28ce60ae6aed85 , < fc3ff42cb0cbf947e4600ae9761c3783760050e2
(git)
Affected: 405ce051236cc65b30bbfe490b28ce60ae6aed85 , < 77b73b54801ae7137479c141fd0473a491c1dc48 (git) Affected: 405ce051236cc65b30bbfe490b28ce60ae6aed85 , < a33bfed648c10f5a1519981dbfad80841191edc8 (git) Affected: 405ce051236cc65b30bbfe490b28ce60ae6aed85 , < dd77a83915b07e2b0205adb284f08b39ae31dc4b (git) Affected: 405ce051236cc65b30bbfe490b28ce60ae6aed85 , < bf7ba8f96c258c30393814491930ae4ecdc5fe5e (git) Affected: 405ce051236cc65b30bbfe490b28ce60ae6aed85 , < 3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e (git) Affected: 62d1655b922958826b7ec22682c3141746f75064 (git) Affected: 5.15.54 , < 5.16 (semver) |
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{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"include/linux/hugetlb.h",
"include/linux/mm.h",
"mm/hugetlb.c",
"mm/memory-failure.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "fc3ff42cb0cbf947e4600ae9761c3783760050e2",
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"version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
"versionType": "git"
},
{
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{
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{
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"version": "62d1655b922958826b7ec22682c3141746f75064",
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},
{
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"version": "5.15.54",
"versionType": "semver"
}
]
},
{
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"product": "Linux",
"programFiles": [
"include/linux/hugetlb.h",
"include/linux/mm.h",
"mm/hugetlb.c",
"mm/memory-failure.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"lessThan": "5.18",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.176",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.143",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.94",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.36",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0.13",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1",
"versionStartIncluding": "5.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15.54",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison\n\nTwo concurrent madvise(MADV_HWPOISON) calls on the same hugetlb page can\ntrigger a recursive spinlock self-deadlock (AA deadlock) on hugetlb_lock\nwhen racing with a concurrent unmap:\n\n thread#0 thread#1\n -------- --------\n madvise(folio, MADV_HWPOISON)\n -\u003e poisons the folio successfully\n madvise(folio, MADV_HWPOISON) unmap(folio)\n try_memory_failure_hugetlb\n get_huge_page_for_hwpoison\n spin_lock_irq(\u0026hugetlb_lock) \u003c- held\n __get_huge_page_for_hwpoison\n hugetlb_update_hwpoison()\n -\u003e MF_HUGETLB_FOLIO_PRE_POISONED\n goto out:\n folio_put()\n refcount: 1 -\u003e 0\n free_huge_folio()\n spin_lock_irqsave(\u0026hugetlb_lock)\n -\u003e AA DEADLOCK!\n\nThe out: path in __get_huge_page_for_hwpoison() calls folio_put() to drop\nthe GUP reference while the hugetlb_lock is still held by the hugetlb.c\nwrapper get_huge_page_for_hwpoison(). If concurrent unmap has released\nthe page table mapping reference, folio_put() drops the folio refcount to\nzero, triggering free_huge_folio() which attempts to re-acquire the\nnon-recursive hugetlb_lock.\n\nFix this by moving hugetlb_lock acquisition from the hugetlb.c wrapper\ninto get_huge_page_for_hwpoison(). Place spin_unlock_irq() before the\nfolio_put() at the out: label so the folio is always released outside the\nlock.\n\n[akpm@linux-foundation.org: fix race, rename label per Miaohe]"
}
],
"providerMetadata": {
"dateUpdated": "2026-06-25T08:39:13.592Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/fc3ff42cb0cbf947e4600ae9761c3783760050e2"
},
{
"url": "https://git.kernel.org/stable/c/77b73b54801ae7137479c141fd0473a491c1dc48"
},
{
"url": "https://git.kernel.org/stable/c/a33bfed648c10f5a1519981dbfad80841191edc8"
},
{
"url": "https://git.kernel.org/stable/c/dd77a83915b07e2b0205adb284f08b39ae31dc4b"
},
{
"url": "https://git.kernel.org/stable/c/bf7ba8f96c258c30393814491930ae4ecdc5fe5e"
},
{
"url": "https://git.kernel.org/stable/c/3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e"
}
],
"title": "mm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-53207",
"datePublished": "2026-06-25T08:39:13.592Z",
"dateReserved": "2026-06-09T07:44:35.391Z",
"dateUpdated": "2026-06-25T08:39:13.592Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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