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VULNERABILITIES

CVE-2022-49991 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4 kernel.orgPatch
https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 kernel.orgPatch
https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698 kernel.orgPatch

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
linux linux kernel
>= 5.13, < 5.15.65
>= 5.16, < 5.19.6
6.0 rc1
6.0 rc2

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-49991
NVD Published Date:
Jun 18, 2025
NVD Last Modified:
Aug 4, 2026
Source:
kernel.org
CVE-2022-49991 Details - Not Deferred