CVE-2022-49991: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 5.13, before 5.15.65 (fixed in 5.15.65); from 5.16, before 5.19.6 (fixed in 5.19.6); version 6.0 only

Published 2025-06-18. Last modified 2026-08-04.