Detections
Analytics
CVE-2022-49991
high
Description
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.
References
https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698
https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6
https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4