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CVE-2022-49426

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

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3-sva: Fix mm use-after-free We currently call arm64_mm_context_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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 32784a9562fb0518b12e9797ee2aec52214adf6f before fc90f13ea0dcd960e5002d204fa55cec4e0db2fa; affected 32784a9562fb0518b12e9797ee2aec52214adf6f before e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0; affected 32784a9562fb0518b12e9797ee2aec52214adf6f before 9aa215450888cf29af0c479e14a712dc6b0c506c; affected 32784a9562fb0518b12e9797ee2aec52214adf6f before cbd23144f7662b00bcde32a938c4a4057e476d68
Linux / Linuxaffected 5.11; unaffected 0 before 5.11; unaffected 5.15.46 through 5.15.*; unaffected 5.17.14 through 5.17.*; unaffected 5.18.3 through 5.18.*; unaffected 5.19 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.