CVE-2022-49426

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Source
https://cve.org/CVERecord?id=CVE-2022-49426
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49426.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49426
Downstream
Related
Published
2025-02-26T02:12:47.206Z
Modified
2026-03-12T03:25:10.143998Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
iommu/arm-smmu-v3-sva: Fix mm use-after-free
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-v3-sva: Fix mm use-after-free

We currently call arm64mmcontext_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49426.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
32784a9562fb0518b12e9797ee2aec52214adf6f
Fixed
fc90f13ea0dcd960e5002d204fa55cec4e0db2fa
Fixed
e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0
Fixed
9aa215450888cf29af0c479e14a712dc6b0c506c
Fixed
cbd23144f7662b00bcde32a938c4a4057e476d68

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49426.json"