CVE-2026-53207mm/memory-failure: fix hugetlb_lock AA deadlock in get_huge_page_for_hwpoison
- 5.5MediumCVSS base score
- 0.10%Exploitation in 30 daysEPSS · top 99% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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]
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.10% · top 99% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < fc3ff42cb0cbf947e4600ae9761c3783760050e2
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < 77b73b54801ae7137479c141fd0473a491c1dc48
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < a33bfed648c10f5a1519981dbfad80841191edc8
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < dd77a83915b07e2b0205adb284f08b39ae31dc4b
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < bf7ba8f96c258c30393814491930ae4ecdc5fe5e
- affected 405ce051236cc65b30bbfe490b28ce60ae6aed85 – < 3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e
- affected 62d1655b922958826b7ec22682c3141746f75064
- affected 5.15.54 – < 5.16
- affected 5.18
- unaffected < 5.18
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.143 – ≤ 6.6.*
- unaffected 6.12.94 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References6
- https://git.kernel.org/stable/c/fc3ff42cb0cbf947e4600ae9761c3783760050e2 (opens in a new tab)
- https://git.kernel.org/stable/c/77b73b54801ae7137479c141fd0473a491c1dc48 (opens in a new tab)
- https://git.kernel.org/stable/c/a33bfed648c10f5a1519981dbfad80841191edc8 (opens in a new tab)
- https://git.kernel.org/stable/c/dd77a83915b07e2b0205adb284f08b39ae31dc4b (opens in a new tab)
- https://git.kernel.org/stable/c/bf7ba8f96c258c30393814491930ae4ecdc5fe5e (opens in a new tab)
- https://git.kernel.org/stable/c/3c2d42b8ee345b17a4ba56b0f6492d1ff4c1178e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-39298 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-53207)Record last updated .