96 lines
3.0 KiB
Diff
96 lines
3.0 KiB
Diff
From 95e581fd181b213c2ed7cdc63f2abc03eaaa77ec Mon Sep 17 00:00:00 2001
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From: Gert Wollny <gert.wollny@collabora.com>
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Date: Tue, 30 Nov 2021 10:17:26 +0100
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Subject: [PATCH] vrend: Add test to resource OOB write and fix it
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v2: Also check that no depth != 1 has been send when none is due
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Closes: #250
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Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
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Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
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---
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src/vrend_renderer.c | 3 +++
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tests/test_fuzzer_formats.c | 43 +++++++++++++++++++++++++++++++++++++
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2 files changed, 46 insertions(+)
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diff --git a/src/vrend_renderer.c b/src/vrend_renderer.c
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index 28f6697..357b81b 100644
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--- a/src/vrend_renderer.c
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+++ b/src/vrend_renderer.c
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@@ -7833,8 +7833,11 @@ static int vrend_renderer_transfer_write_iov(struct vrend_context *ctx,
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info->box->height) * elsize;
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if (res->target == GL_TEXTURE_3D ||
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res->target == GL_TEXTURE_2D_ARRAY ||
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+ res->target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
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res->target == GL_TEXTURE_CUBE_MAP_ARRAY)
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send_size *= info->box->depth;
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+ else if (need_temp && info->box->depth != 1)
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+ return EINVAL;
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if (need_temp) {
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data = malloc(send_size);
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diff --git a/tests/test_fuzzer_formats.c b/tests/test_fuzzer_formats.c
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index 59d6fb6..2de9a9a 100644
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--- a/tests/test_fuzzer_formats.c
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+++ b/tests/test_fuzzer_formats.c
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@@ -957,6 +957,48 @@ static void test_vrend_set_signle_abo_heap_overflow() {
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virgl_renderer_submit_cmd((void *) cmd, ctx_id, 0xde);
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}
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+/* Test adapted from yaojun8558363@gmail.com:
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+ * https://gitlab.freedesktop.org/virgl/virglrenderer/-/issues/250
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+*/
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+static void test_vrend_3d_resource_overflow() {
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+
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+ struct virgl_renderer_resource_create_args resource;
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+ resource.handle = 0x4c474572;
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+ resource.target = PIPE_TEXTURE_2D_ARRAY;
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+ resource.format = VIRGL_FORMAT_Z24X8_UNORM;
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+ resource.nr_samples = 2;
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+ resource.last_level = 0;
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+ resource.array_size = 3;
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+ resource.bind = VIRGL_BIND_SAMPLER_VIEW;
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+ resource.depth = 1;
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+ resource.width = 8;
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+ resource.height = 4;
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+ resource.flags = 0;
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+
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+ virgl_renderer_resource_create(&resource, NULL, 0);
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+ virgl_renderer_ctx_attach_resource(ctx_id, resource.handle);
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+
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+ uint32_t size = 0x400;
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+ uint32_t cmd[size];
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+ int i = 0;
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+ cmd[i++] = (size - 1) << 16 | 0 << 8 | VIRGL_CCMD_RESOURCE_INLINE_WRITE;
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+ cmd[i++] = resource.handle;
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+ cmd[i++] = 0; // level
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+ cmd[i++] = 0; // usage
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+ cmd[i++] = 0; // stride
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+ cmd[i++] = 0; // layer_stride
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+ cmd[i++] = 0; // x
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+ cmd[i++] = 0; // y
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+ cmd[i++] = 0; // z
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+ cmd[i++] = 8; // w
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+ cmd[i++] = 4; // h
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+ cmd[i++] = 3; // d
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+ memset(&cmd[i], 0, size - i);
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+
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+ virgl_renderer_submit_cmd((void *) cmd, ctx_id, size);
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+}
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+
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+
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int main()
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{
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initialize_environment();
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@@ -979,6 +1021,7 @@ int main()
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test_cs_nullpointer_deference();
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test_vrend_set_signle_abo_heap_overflow();
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+ test_vrend_3d_resource_overflow();
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virgl_renderer_context_destroy(ctx_id);
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virgl_renderer_cleanup(&cookie);
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--
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2.27.0
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