diff options
| author | Dave Martin <Dave.Martin@arm.com> | 2017-01-18 16:25:23 +0000 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-03-06 17:29:27 -0500 |
| commit | 113634c09aa0f3196d8882116d9b2580954644bd (patch) | |
| tree | 268555071220a6cff3140b5896bb8ccea95c9e8d /arch | |
| parent | 521aff7c7bbe9af54727fdb7d88b3ef4e1ea9465 (diff) | |
arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
[ Upstream commit aeb1f39d814b2e21e5e5706a48834bfd553d0059 ]
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.
Cc: <stable@vger.kernel.org> # 3.7.x-
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: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/uapi/asm/ptrace.h | 1 |
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 6913643bbe54..c136fd53c847 100644 --- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -75,6 +75,7 @@ struct user_fpsimd_state { __uint128_t vregs[32]; __u32 fpsr; __u32 fpcr; + __u32 __reserved[2]; }; struct user_hwdebug_state { |