summaryrefslogtreecommitdiff
path: root/arch/arm64/include
diff options
context:
space:
mode:
authorDave Martin <Dave.Martin@arm.com>2017-01-18 16:25:23 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-26 07:24:41 (GMT)
commitf9081dd0c8be396428e04cd1e9ca5e4c86e375d4 (patch)
tree4724521ba458e76e742462fba1dbfb5f727b9eb9 /arch/arm64/include
parent5c5839be08423b8a76d40beb59165e7993b4d455 (diff)
downloadlinux-f9081dd0c8be396428e04cd1e9ca5e4c86e375d4.tar.xz
arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
commit aeb1f39d814b2e21e5e5706a48834bfd553d0059 upstream. This patch adds an explicit __reserved[] field to user_fpsimd_state to replace what was previously unnamed padding. This ensures that data in this region are propagated across assignment rather than being left possibly uninitialised at the destination. Fixes: 60ffc30d5652 ("arm64: Exception handling") Signed-off-by: Dave Martin <Dave.Martin@arm.com> Acked-by: Will Deacon <Will.Deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/include')
-rw-r--r--arch/arm64/include/uapi/asm/ptrace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h
index b5c3933..d1ff83d 100644
--- a/arch/arm64/include/uapi/asm/ptrace.h
+++ b/arch/arm64/include/uapi/asm/ptrace.h
@@ -77,6 +77,7 @@ struct user_fpsimd_state {
__uint128_t vregs[32];
__u32 fpsr;
__u32 fpcr;
+ __u32 __reserved[2];
};
struct user_hwdebug_state {