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vm_fault: Shoot down multiply mapped COW source page mappings

Description

vm_fault: Shoot down multiply mapped COW source page mappings

Reviewed by: kib, rlibby
Discussed with: alc
Approved by: so
Security: CVE-2021-29626
Security: FreeBSD-SA-21:08.vm

Details

Provenance
markjAuthored on Apr 6 2021, 6:56 PM
Parents
rGbd422989a99b: Lock busdma operations and serialize detach against open/close
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