CVE-2022-49991
- Source
- https://cve.org/CVERecord?id=CVE-2022-49991
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49991.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49991
- Downstream
- Published
- 2025-06-18T11:00:51.745Z
- Modified
- 2026-03-20T12:24:49.454419Z
- Summary
- mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: avoid corrupting page->mapping in hugetlbmcopyatomic_pte
In MCOPYATOMICCONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepageaddnewanonrmap is called for them mistakenly because they're not vm_shared. This will corrupt the page->mapping used by page cache code.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49991.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4
- https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6
- https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49991.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49991
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git