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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-53207 Detail

Description

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. [[email protected]: fix race, rename label per Miaohe]


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e kernel.org
https://git.kernel.org/stable/c/77b73b54801ae7137479c141fd0473a491c1dc48 kernel.org
https://git.kernel.org/stable/c/a33bfed648c10f5a1519981dbfad80841191edc8 kernel.org
https://git.kernel.org/stable/c/bf7ba8f96c258c30393814491930ae4ecdc5fe5e kernel.org
https://git.kernel.org/stable/c/dd77a83915b07e2b0205adb284f08b39ae31dc4b kernel.org
https://git.kernel.org/stable/c/fc3ff42cb0cbf947e4600ae9761c3783760050e2 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-53207
NVD Published Date:
06/25/2026
NVD Last Modified:
06/25/2026
Source:
kernel.org