Searched hist:ea6020830c8f88e2b844ae9700c8ef58fbb51c75 (Results 1 – 6 of 6) sorted by relevance
| /freebsd/sys/x86/include/ |
| H A D | x86_var.h | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| /freebsd/share/man/man7/ |
| H A D | security.7 | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| /freebsd/sys/x86/x86/ |
| H A D | cpu_machdep.c | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| /freebsd/sys/amd64/amd64/ |
| H A D | initcpu.c | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| H A D | support.S | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|
| H A D | cpu_switch.S | diff ea6020830c8f88e2b844ae9700c8ef58fbb51c75 Thu May 21 00:00:31 CEST 2020 Konstantin Belousov <kib@FreeBSD.org> amd64: Add a knob to flush RSB on context switches if machine has SMEP.
The flush is needed to prevent cross-process ret2spec, which is not handled
on kernel entry if IBPB is enabled but SMEP is present.
While there, add i386 RSB flush.
Reported by: Anthony Steinhauser <asteinhauser@google.com>
Reviewed by: markj, Anthony Steinhauser
Discussed with: philip
admbugs: 961
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
|