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amd64: clear callee-preserved registers on syscall exit

Description

amd64: clear callee-preserved registers on syscall exit

Submitted by: kib
Approved by: so
Security: CVE-2019-5595
Security: FreeBSD-SA-19:01.syscall

Details

Provenance
emasteAuthored on
Parents
rS343788: MFS12 r343781: amd64: clear callee-preserved registers on syscall exit
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