diff options
| author | Kees Cook <keescook@chromium.org> | 2018-10-31 00:12:56 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-11-08 13:59:10 +0300 |
| commit | e46daee53bb50bde38805f1823a182979724c229 (patch) | |
| tree | 4fddda4f42739fd0cabfd7acea1a52a620365ada /arch/arm/mm | |
| parent | 651022382c7f8da46cb4872a545ee1da6d097d2a (diff) | |
| download | linux-e46daee53bb50bde38805f1823a182979724c229.tar.xz | |
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: 6974f0c4555e ("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>
Diffstat (limited to 'arch/arm/mm')
0 files changed, 0 insertions, 0 deletions