Sign Up
Log In
Log In
or
Sign Up
Places
All Projects
Status Monitor
Collapse sidebar
SUSE:SLE-12-SP4:Update
xen.3678
581b2c3b-x86-emul-reject-LGDT-LIDT-with-non-can...
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File 581b2c3b-x86-emul-reject-LGDT-LIDT-with-non-canonical-addresses.patch of Package xen.3678
# Commit 12bc22f79117dfae5e59382cdda6b8b6b70a7554 # Date 2016-11-03 12:23:23 +0000 # Author Andrew Cooper <andrew.cooper3@citrix.com> # Committer Andrew Cooper <andrew.cooper3@citrix.com> x86/emul: Reject LGDT/LIDT attempts with non-canonical base addresses No sane OS would deliberately try this, but make Xen's emulation match real hardware by delivering #GP(0), rather than suffering a VMEntry failure. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Jan Beulich <JBeulich@suse.com> --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -4005,6 +4005,7 @@ x86_emulate( (rc = read_ulong(ea.mem.seg, ea.mem.off+2, &base, mode_64bit() ? 8 : 4, ctxt, ops)) ) goto done; + generate_exception_if(!is_canonical_address(base), EXC_GP, 0); reg.base = base; reg.limit = limit; if ( op_bytes == 2 )
Locations
Projects
Search
Status Monitor
Help
OpenBuildService.org
Documentation
API Documentation
Code of Conduct
Contact
Support
@OBShq
Terms
openSUSE Build Service is sponsored by
The Open Build Service is an
openSUSE project
.
Sign Up
Log In
Places
Places
All Projects
Status Monitor
