+++ AKASHI Takahiro [14/11/16 15:15 +0900]:
The current "rodata=off" parameter disables read-only kernel mappings under CONFIG_DEBUG_RODATA: commit d2aa1acad22f ("mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings")This patch is a logical extension to module mappings ie. read-only mappings at module loading can be disabled even if CONFIG_DEBUG_SET_MODULE_RONX (mainly for debug use). Please note, however, that it only affects RO/RW permissions, keeping NX set. This is the first step to make CONFIG_DEBUG_SET_MODULE_RONX mandatory (always-on) in the future as CONFIG_DEBUG_RODATA on x86 and arm64. Suggested-by: and Acked-by: Mark Rutland <[email protected]> Signed-off-by: AKASHI Takahiro <[email protected]> Reviewed-by: Kees Cook <[email protected]> Cc: Rusty Russell <[email protected]>
Hi Rusty, could I get an (n)ack for this patch? :-) Thanks! Jessica
