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alistair23-linux/arch/arm/probes/kprobes
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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
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
actions-arm.c ARM: kprobes: check register usage for probed instruction. 2015-01-13 16:10:48 +00:00
actions-common.c ARM: probes: move all probe code to dedicate directory 2015-01-09 09:36:50 +00:00
actions-thumb.c ARM: kprobes: collects stack consumption for store instructions 2015-01-13 16:10:06 +00:00
checkers-arm.c ARM: kprobes: check register usage for probed instruction. 2015-01-13 16:10:48 +00:00
checkers-common.c ARM: kprobes: collects stack consumption for store instructions 2015-01-13 16:10:06 +00:00
checkers-thumb.c ARM: kprobes: collects stack consumption for store instructions 2015-01-13 16:10:06 +00:00
checkers.h ARM: kprobes: check register usage for probed instruction. 2015-01-13 16:10:48 +00:00
core.c kprobes/arm: Fix %p uses in error messages 2018-06-21 17:33:42 +02:00
core.h ARM: kprobes: Fix compilation error caused by superfluous '*' 2015-02-10 15:05:30 +08:00
opt-arm.c ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE 2018-11-08 10:59:10 +00:00
test-arm.c ARM: kprobes: Eliminate test code's use of BX instruction on ARMv4 CPUs 2015-01-20 09:06:04 +00:00
test-core.c kprobes/arm: Fix %p uses in error messages 2018-06-21 17:33:42 +02:00
test-core.h ARM: kprobes: Fix unreliable MRS instruction tests 2015-01-13 16:10:17 +00:00
test-thumb.c ARM: kprobes: Fix unreliable MRS instruction tests 2015-01-13 16:10:17 +00:00