CVE-2022-49991

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4	Patch
https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6	Patch
https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	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::::::

History

14 Nov 2025, 18:12

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4 -~~	() https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4 - Patch
References	~~() https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 -~~	() https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6 - Patch
References	~~() https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698 -~~	() https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698 - Patch
First Time		Linux linux Kernel Linux
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CWE		NVD-CWE-noinfo
CPE		cpe:2.3:o:linux:linux_kernel:6.0:rc1:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.0:rc2::::::

Information

Published : 2025-06-18 11:15

Updated : 2025-11-14 18:12

NVD link : CVE-2022-49991

Mitre link : CVE-2022-49991

CVE.ORG link : CVE-2022-49991

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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