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Kees Cook e46daee53b ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE 
The arm compiler internally interprets an inline assembly label
as an unsigned long value, not a pointer. As a result, under
CONFIG_FORTIFY_SOURCE, the address of a label has a size of 4 bytes,
which was tripping the runtime checks. Instead, we can just cast the label
(as done with the size calculations earlier).

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1639397

Reported-by: William Cohen <wcohen@redhat.com>
Fixes: 6974f0c455 ("include/linux/string.h: add the option of fortified string.h functions")
Cc: stable@vger.kernel.org
Acked-by: Laura Abbott <labbott@redhat.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: William Cohen <wcohen@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 		2018-11-08 10:59:10 +00:00
..
kprobes ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE 2018-11-08 10:59:10 +00:00
uprobes Uprobe: Additional argument arch_uprobe to uprobe_write_opcode() 2018-08-13 20:08:33 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
decode-arm.c ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-arm.h ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-thumb.c ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode-thumb.h ARM: kprobes: introduces checker 2015-01-09 09:36:51 +00:00
decode.c ARM: kprobes: check register usage for probed instruction. 2015-01-13 16:10:48 +00:00
decode.h kprobes: move kprobe declarations to asm-generic/kprobes.h 2017-02-27 18:43:45 -08:00