FKIE_CVE-2026-53207

Vulnerability from fkie_nvd - Published: 2026-06-25 09:16 - Updated: 2026-06-30 14:44
Severity
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]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77b73b54801ae7137479c141fd0473a491c1dc48
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a33bfed648c10f5a1519981dbfad80841191edc8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf7ba8f96c258c30393814491930ae4ecdc5fe5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd77a83915b07e2b0205adb284f08b39ae31dc4b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc3ff42cb0cbf947e4600ae9761c3783760050e2
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "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",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "lessThan": "77b73b54801ae7137479c141fd0473a491c1dc48",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "lessThan": "a33bfed648c10f5a1519981dbfad80841191edc8",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "lessThan": "dd77a83915b07e2b0205adb284f08b39ae31dc4b",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "lessThan": "bf7ba8f96c258c30393814491930ae4ecdc5fe5e",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "lessThan": "3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e",
              "status": "affected",
              "version": "405ce051236cc65b30bbfe490b28ce60ae6aed85",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "62d1655b922958826b7ec22682c3141746f75064",
              "versionType": "git"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.54",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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]"
    }
  ],
  "id": "CVE-2026-53207",
  "lastModified": "2026-06-30T14:44:27.313",
  "metrics": {},
  "published": "2026-06-25T09:16:38.233",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/77b73b54801ae7137479c141fd0473a491c1dc48"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a33bfed648c10f5a1519981dbfad80841191edc8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf7ba8f96c258c30393814491930ae4ecdc5fe5e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd77a83915b07e2b0205adb284f08b39ae31dc4b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fc3ff42cb0cbf947e4600ae9761c3783760050e2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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