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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tim Huang <Tim.Huang@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Sasha Levin <sashal@kernel.org>,
	christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com,
	daniel@ffwll.ch, guchun.chen@amd.com,
	srinivasan.shanmugam@amd.com, amd-gfx@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.10 13/38] drm/amdgpu: fix ucode out-of-bounds read warning
Date: Wed, 31 Jul 2024 20:35:19 -0400	[thread overview]
Message-ID: <20240801003643.3938534-13-sashal@kernel.org> (raw)
In-Reply-To: <20240801003643.3938534-1-sashal@kernel.org>

From: Tim Huang <Tim.Huang@amd.com>

[ Upstream commit 8944acd0f9db33e17f387fdc75d33bb473d7936f ]

Clear warning that read ucode[] may out-of-bounds.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 78ac6dbe70d84..854b218602574 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -213,6 +213,9 @@ static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
 		struct amdgpu_firmware_info *ucode;
 
 		id = fw_type_convert(cgs_device, type);
+		if (id >= AMDGPU_UCODE_ID_MAXIMUM)
+			return -EINVAL;
+
 		ucode = &adev->firmware.ucode[id];
 		if (ucode->fw == NULL)
 			return -EINVAL;
-- 
2.43.0


  parent reply	other threads:[~2024-08-01  0:37 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-01  0:35 [PATCH AUTOSEL 5.10 01/38] drm/amdgpu: fix overflowed array index read warning Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 02/38] drm/amd/pm: fix warning using uninitialized value of max_vid_step Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 03/38] drm/amd/pm: fix the Out-of-bounds read warning Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 04/38] drm/amdgpu: fix uninitialized scalar variable warning Sasha Levin
2024-08-22 11:00   ` Pavel Machek
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 05/38] drm/amd/display: Check gpio_id before used as array index Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 06/38] drm/amd/display: Stop amdgpu_dm initialize when stream nums greater than 6 Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 07/38] drm/amd/display: Add array index check for hdcp ddc access Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 08/38] drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[] Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 09/38] drm/amd/display: Check msg_id before processing transcation Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 10/38] drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_create Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 11/38] drm/amdgpu: Fix out-of-bounds write warning Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 12/38] drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number Sasha Levin
2024-08-01  0:35 ` Sasha Levin [this message]
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 14/38] drm/amdgpu: fix mc_data out-of-bounds read warning Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 15/38] drm/amdkfd: Reconcile the definition and use of oem_id in struct kfd_topology_device Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 16/38] drm/amdgpu/pm: Check input value for CUSTOM profile mode setting on legacy SOCs Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 17/38] drm/amdgpu: the warning dereferencing obj for nbio_v7_4 Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 24/38] drm/amd/display: added NULL check at start of dc_validate_stream Sasha Levin
2024-08-01  0:35 ` [PATCH AUTOSEL 5.10 25/38] drm/amd/display: Skip wbscl_set_scaler_filter if filter is null Sasha Levin

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