Module Name: src
Committed By: maxv
Date: Tue May 8 17:20:44 UTC 2018
Modified Files:
src/sys/arch/amd64/amd64: amd64_trap.S machdep.c
src/sys/arch/x86/include: pmap.h
Log Message:
Mitigation for the SS bug, CVE-2018-8897. We disabled dbregs a month ago
in -current and -8 so we are not particularly affected anymore.
The #DB handler runs on ist3, if we decide to process the exception we
copy the iret frame on the correct non-ist stack and continue as usual.
To generate a diff of this commit:
cvs rdiff -u -r1.40 -r1.41 src/sys/arch/amd64/amd64/amd64_trap.S
cvs rdiff -u -r1.303 -r1.304 src/sys/arch/amd64/amd64/machdep.c
cvs rdiff -u -r1.76 -r1.77 src/sys/arch/x86/include/pmap.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
