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| author | Kees Cook <keescook@chromium.org> | 2022-09-27 03:40:11 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-09-27 16:14:53 +0300 |
| commit | a776bf77c98ddea32233e2480f565797900975ba (patch) | |
| tree | ec377c3566732e889b897f245dc04d89c90d8e9e /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | d443fcad6f644a98f2b2cee6a2bfd7e6620d2fe5 (diff) | |
| download | linux-a776bf77c98ddea32233e2480f565797900975ba.tar.xz | |
platform/surface: Split memcpy() of struct ssam_event flexible array
To work around a misbehavior of the compiler's ability to see into
composite flexible array structs (as detailed in the coming memcpy()
hardening series[1]), split the memcpy() of the header and the payload
so no false positive run-time overflow warning will be generated.
[1] https://lore.kernel.org/linux-hardening/20220901065914.1417829-2-keescook@chromium.org
Cc: Maximilian Luz <luzmaximilian@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220927004011.1942739-1-keescook@chromium.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
0 files changed, 0 insertions, 0 deletions