From: hackyzh002 <hackyzh002@gmail.com>
To: alexander.deucher@amd.com
Cc: Xinhui.Pan@amd.com, linux-kernel@vger.kernel.org,
amd-gfx@lists.freedesktop.org, sumit.semwal@linaro.org,
linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org,
daniel@ffwll.ch, hackyzh002 <hackyzh002@gmail.com>,
airlied@gmail.com, christian.koenig@amd.com,
linux-media@vger.kernel.org
Subject: [PATCH v2 1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init
Date: Wed, 19 Apr 2023 16:57:47 +0800 [thread overview]
Message-ID: <20230419085747.4720-1-hackyzh002@gmail.com> (raw)
The type of size is unsigned, if size is 0x40000000, there will be an
integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later
Signed-off-by: hackyzh002 <hackyzh002@gmail.com>
---
drivers/gpu/drm/radeon/radeon_cs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 46a27ebf4..8e12b406e 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -270,7 +270,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
{
struct drm_radeon_cs *cs = data;
uint64_t *chunk_array_ptr;
- unsigned size, i;
+ u64 size, i;
u32 ring = RADEON_CS_RING_GFX;
s32 priority = 0;
--
2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: hackyzh002 <hackyzh002@gmail.com>
To: alexander.deucher@amd.com
Cc: Xinhui.Pan@amd.com, linux-kernel@vger.kernel.org,
amd-gfx@lists.freedesktop.org, sumit.semwal@linaro.org,
linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org,
hackyzh002 <hackyzh002@gmail.com>,
christian.koenig@amd.com, linux-media@vger.kernel.org
Subject: [PATCH v2 1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init
Date: Wed, 19 Apr 2023 16:57:47 +0800 [thread overview]
Message-ID: <20230419085747.4720-1-hackyzh002@gmail.com> (raw)
The type of size is unsigned, if size is 0x40000000, there will be an
integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later
Signed-off-by: hackyzh002 <hackyzh002@gmail.com>
---
drivers/gpu/drm/radeon/radeon_cs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 46a27ebf4..8e12b406e 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -270,7 +270,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
{
struct drm_radeon_cs *cs = data;
uint64_t *chunk_array_ptr;
- unsigned size, i;
+ u64 size, i;
u32 ring = RADEON_CS_RING_GFX;
s32 priority = 0;
--
2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: hackyzh002 <hackyzh002@gmail.com>
To: alexander.deucher@amd.com
Cc: christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com,
daniel@ffwll.ch, sumit.semwal@linaro.org,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linaro-mm-sig@lists.linaro.org, hackyzh002 <hackyzh002@gmail.com>
Subject: [PATCH v2 1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init
Date: Wed, 19 Apr 2023 16:57:47 +0800 [thread overview]
Message-ID: <20230419085747.4720-1-hackyzh002@gmail.com> (raw)
The type of size is unsigned, if size is 0x40000000, there will be an
integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later
Signed-off-by: hackyzh002 <hackyzh002@gmail.com>
---
drivers/gpu/drm/radeon/radeon_cs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 46a27ebf4..8e12b406e 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -270,7 +270,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
{
struct drm_radeon_cs *cs = data;
uint64_t *chunk_array_ptr;
- unsigned size, i;
+ u64 size, i;
u32 ring = RADEON_CS_RING_GFX;
s32 priority = 0;
--
2.34.1
next reply other threads:[~2023-04-19 13:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-19 8:57 hackyzh002 [this message]
2023-04-19 8:57 ` [PATCH v2 1/2] drm/radeon: Fix integer overflow in radeon_cs_parser_init hackyzh002
2023-04-19 8:57 ` hackyzh002
2023-04-19 8:59 ` Christian König
2023-04-19 8:59 ` Christian König
2023-04-19 8:59 ` Christian König
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