Answer in brief
CVE-2024-35993 records a Unknown severity vulnerability in mm: turn folio_test_hugetlb into a PageType. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <2431b5f2650dfc47ce782d1ca7b02d6b3916976f || >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32 || >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <d99e3140a4d33e26066183ff727d8f02f56bec64 | 2431b5f2650dfc47ce782d1ca7b02d6b3916976f, 9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32, d99e3140a4d33e26066183ff727d8f02f56bec64 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
May 20, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: mm: turn folio_test_hugetlb into a PageType The current folio_test_hugetlb() can be fooled by a concurrent folio split into returning true for a folio which has never belonged to hugetlbfs. This can't happen if the caller holds a refcount on it, but we have a few places (memory-failure, compaction, procfs) which do not and should not take a speculative reference. Since hugetlb pages do not use individual page mapcounts (they are always fully mapped and use the entire_mapcount field to record the number of mappings), the PageType field is available now that page_mapcount() ignores the value in this field. In compaction and with CONFIG_DEBUG_VM enabled, the current implementation can result in an oops, as reported by Luis. This happens since 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR") effectively added some VM_BUG_ON() checks in the PageHuge() testing path. [[email protected]: update vmcoreinfo]
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-35993 records a Unknown severity vulnerability in mm: turn folio_test_hugetlb into a PageType. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <2431b5f2650dfc47ce782d1ca7b02d6b3916976f || >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32 || >=9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a <d99e3140a4d33e26066183ff727d8f02f56bec64 | 2431b5f2650dfc47ce782d1ca7b02d6b3916976f, 9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32, d99e3140a4d33e26066183ff727d8f02f56bec64 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
May 20, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: mm: turn folio_test_hugetlb into a PageType The current folio_test_hugetlb() can be fooled by a concurrent folio split into returning true for a folio which has never belonged to hugetlbfs. This can't happen if the caller holds a refcount on it, but we have a few places (memory-failure, compaction, procfs) which do not and should not take a speculative reference. Since hugetlb pages do not use individual page mapcounts (they are always fully mapped and use the entire_mapcount field to record the number of mappings), the PageType field is available now that page_mapcount() ignores the value in this field. In compaction and with CONFIG_DEBUG_VM enabled, the current implementation can result in an oops, as reported by Luis. This happens since 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR") effectively added some VM_BUG_ON() checks in the PageHuge() testing path. [[email protected]: update vmcoreinfo]
Quoted source text, attributed separately from HOL analysis.