Conor McCarthy : vkd3d-shader/dxbc: Emit a shader error for an invalid signature data size.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 3b5316be821a664e54edc963fd3c69259db7df95
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/3b5316be821a664e54edc963fd3c69...

Author: Conor McCarthy 
Date:   Tue Mar  7 14:04:44 2023 +1000

vkd3d-shader/dxbc: Emit a shader error for an invalid signature data size.

---

libs/vkd3d-shader/dxbc.c                 | 2 ++
 libs/vkd3d-shader/vkd3d_shader_private.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/libs/vkd3d-shader/dxbc.c b/libs/vkd3d-shader/dxbc.c
index b01e30e5..008be3c8 100644
--- a/libs/vkd3d-shader/dxbc.c
+++ b/libs/vkd3d-shader/dxbc.c
@@ -1929,6 +1929,8 @@ static int shader_parse_signature(const struct vkd3d_shader_dxbc_section_desc *s
     if (!require_space(0, 2, sizeof(uint32_t), section->data.size))
     {
         WARN("Invalid data size %#zx.\n", section->data.size);
+        vkd3d_shader_error(message_context, NULL, VKD3D_SHADER_ERROR_DXBC_INVALID_SIGNATURE,
+                "Section size %zu is smaller than the minimum signature header size.\n", section->data.size);
         return VKD3D_ERROR_INVALID_ARGUMENT;
     }

diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index 78a48e55..64a53803 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -69,6 +69,7 @@ enum vkd3d_shader_error
     VKD3D_SHADER_ERROR_DXBC_INVALID_CHUNK_OFFSET        = 5,
     VKD3D_SHADER_ERROR_DXBC_INVALID_CHUNK_SIZE          = 6,
     VKD3D_SHADER_ERROR_DXBC_OUT_OF_MEMORY               = 7,
+    VKD3D_SHADER_ERROR_DXBC_INVALID_SIGNATURE           = 8,

VKD3D_SHADER_ERROR_TPF_MISMATCHED_CF                = 1000,
     VKD3D_SHADER_ERROR_TPF_INVALID_REGISTER_RANGE       = 1001,