Answer in brief
CVE-2022-49991 records a High severity (CVSS 7.8) vulnerability in mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f619147104c8ea71e120e4936d2b68ec11a1e527 <da60ddd80d09f8371fbba1a238a4b318d13ba698 || >=f619147104c8ea71e120e4936d2b68ec11a1e527 <3ada1b3e58db255a14ec73a59d7913e84dc5a8a4 || >=f619147104c8ea71e120e4936d2b68ec11a1e527 <ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 | da60ddd80d09f8371fbba1a238a4b318d13ba698, 3ada1b3e58db255a14ec73a59d7913e84dc5a8a4, ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte In MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepage_add_new_anon_rmap is called for them mistakenly because they're not vm_shared. This will corrupt the page->mapping used by page cache code.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-49991 records a High severity (CVSS 7.8) vulnerability in mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f619147104c8ea71e120e4936d2b68ec11a1e527 <da60ddd80d09f8371fbba1a238a4b318d13ba698 || >=f619147104c8ea71e120e4936d2b68ec11a1e527 <3ada1b3e58db255a14ec73a59d7913e84dc5a8a4 || >=f619147104c8ea71e120e4936d2b68ec11a1e527 <ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 | da60ddd80d09f8371fbba1a238a4b318d13ba698, 3ada1b3e58db255a14ec73a59d7913e84dc5a8a4, ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Jun 18, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte In MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepage_add_new_anon_rmap is called for them mistakenly because they're not vm_shared. This will corrupt the page->mapping used by page cache code.
Quoted source text, attributed separately from HOL analysis.