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| author | Dave Martin <Dave.Martin@arm.com> | 2017-01-18 16:25:23 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-26 07:24:41 (GMT) |
| commit | f9081dd0c8be396428e04cd1e9ca5e4c86e375d4 (patch) | |
| tree | 4724521ba458e76e742462fba1dbfb5f727b9eb9 /arch/arm64/include | |
| parent | 5c5839be08423b8a76d40beb59165e7993b4d455 (diff) | |
| download | linux-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.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 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 { |