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authorDavid Howells2019-08-19 17:17:56 -0700
committerJames Morris2019-08-19 21:54:16 -0700
commit906357f77a077508d160e729f917c5f0a4304f25 (patch)
tree049ecdbb02af347886a383126722b6bc853503a6 /crypto
parent20657f66ef52e5005369e4ef539d4cbf01eab10d (diff)
x86/mmiotrace: Lock down the testmmiotrace module
The testmmiotrace module shouldn't be permitted when the kernel is locked down as it can be used to arbitrarily read and write MMIO space. This is a runtime check rather than buildtime in order to allow configurations where the same kernel may be run in both locked down or permissive modes depending on local policy. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Howells <dhowells@redhat.com Signed-off-by: Matthew Garrett <mjg59@google.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Reviewed-by: Kees Cook <keescook@chromium.org> cc: Thomas Gleixner <tglx@linutronix.de> cc: Steven Rostedt <rostedt@goodmis.org> cc: Ingo Molnar <mingo@kernel.org> cc: "H. Peter Anvin" <hpa@zytor.com> cc: x86@kernel.org Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions