From: Colin King <colin.king@canonical.com>
To: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Hawking Zhang" <Hawking.Zhang@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] drm/amd/pm: fix out-of-bound read on pptable->SkuReserved
Date: Wed, 28 Oct 2020 12:43:16 +0000 [thread overview]
Message-ID: <20201028124316.109886-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
A recent change added two uint16_t elements to PPTable_t and reduced the
uint32_t array down to 8 elements. This results in the dev_info printing
of pptable->SkuReserved[8] accessing a value that is out-of-range on
array SkuReserved. The array has been shrunk by 1 element, so remove
this extraneous dev_info message.
Addresses-Coverity: ("Out-of-bounds read")
Fixes: 1dc3c5a95b08 ("drm/amd/pm: update driver if file for sienna cichlid")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index fa3842f460fc..0600befc6e4c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -2279,7 +2279,6 @@ static void sienna_cichlid_dump_pptable(struct smu_context *smu)
dev_info(smu->adev->dev, "SkuReserved[5] = 0x%x\n", pptable->SkuReserved[5]);
dev_info(smu->adev->dev, "SkuReserved[6] = 0x%x\n", pptable->SkuReserved[6]);
dev_info(smu->adev->dev, "SkuReserved[7] = 0x%x\n", pptable->SkuReserved[7]);
- dev_info(smu->adev->dev, "SkuReserved[8] = 0x%x\n", pptable->SkuReserved[8]);
dev_info(smu->adev->dev, "GamingClk[0] = 0x%x\n", pptable->GamingClk[0]);
dev_info(smu->adev->dev, "GamingClk[1] = 0x%x\n", pptable->GamingClk[1]);
--
2.27.0
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next reply other threads:[~2020-10-28 12:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-28 12:43 Colin King [this message]
2020-10-29 21:59 ` [PATCH][next] drm/amd/pm: fix out-of-bound read on pptable->SkuReserved Alex Deucher
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