CVE-2022-49991

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49991
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49991.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49991
Related
Published
2025-06-18T11:15:26Z
Modified
2025-06-18T16:00:26Z
Downstream
Summary
[none]
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.

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}