Daniel Thompson ad99b5105c kdb: Censor attempts to set PROMPT without ENABLE_MEM_READ ... Currently the PROMPT variable could be abused to provoke the printf() machinery to read outside the current stack frame. Normally this doesn't matter becaues md is already a much better tool for reading from memory. However the md command can be disabled by not setting KDB_ENABLE_MEM_READ. Let's also prevent PROMPT from being modified in these circumstances. Whilst adding a comment to help future code reviewers we also remove the #ifdef where PROMPT in consumed. There is no problem passing an unused (0) to snprintf when !CONFIG_SMP. argument Reported-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org>		2020-04-01 16:59:11 +01:00
..
.gitignore	kdb: core for kgdb back end (1 of 2)	2010-05-20 21:04:20 -05:00
kdb_bp.c	kdb: remove redundant assignment to pointer bp	2020-01-31 17:34:06 +00:00
kdb_bt.c	kdb: Gid rid of implicit setting of the current task / regs	2020-01-31 17:34:00 +00:00
kdb_cmds	kdb: cleanup unused variables missed in the original kdb merge	2011-08-01 13:23:58 -05:00
kdb_debugger.c	kdb: Don't back trace on a cpu that didn't round up	2018-12-30 08:31:23 +00:00
kdb_io.c	kdb: Use for_each_console() helper	2020-01-31 17:34:54 +00:00
kdb_keyboard.c	kdb: kdb_keyboard: mark expected switch fall-throughs	2018-11-13 20:38:50 +00:00
kdb_main.c	kdb: Censor attempts to set PROMPT without ENABLE_MEM_READ	2020-04-01 16:59:11 +01:00
kdb_private.h	kdb: Gid rid of implicit setting of the current task / regs	2020-01-31 17:34:00 +00:00
kdb_support.c	kdb: kdb_support: replace strcpy() by strscpy()	2019-05-02 13:42:01 +01:00
Makefile	kdb: Get rid of broken attempt to print CCVERSION in kdb summary	2019-05-12 09:50:43 +01:00