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From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Airlie <airlied@linux.ie>
Cc: "Christian König" <christian.koenig@amd.com>,
	"Chunming Zhou" <david1.zhou@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Jammy Zhou" <Jammy.Zhou@amd.com>, "monk.liu" <monk.liu@amd.com>,
	"Marek Olšák" <marek.olsak@amd.com>,
	dri-devel@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	security@kernel.org,
	"Ilja Van Sprundel" <ivansprundel@ioactive.com>
Subject: [patch] drm/amdgpu: signedness bug in amdgpu_cs_parser_init()
Date: Fri, 25 Sep 2015 11:36:55 +0000	[thread overview]
Message-ID: <20150925113655.GA12962@mwanda> (raw)
In-Reply-To: <A3397C8B8B789E45844E7EC5DEAD89D06E91395A@satlexdag05.amd.com>

The "i" variable should be signed or it leads to a crash in the error
handling code.

Fixes: 1d263474c441 ('drm/amdgpu: unwind properly in amdgpu_cs_parser_init()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 749420f..cb3c274 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -156,7 +156,8 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 	uint64_t *chunk_array_user;
 	uint64_t *chunk_array;
 	struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
-	unsigned size, i;
+	unsigned size;
+	int i;
 	int ret;
 
 	if (cs->in.num_chunks = 0)

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: David Airlie <airlied@linux.ie>
Cc: "Christian König" <christian.koenig@amd.com>,
	"Chunming Zhou" <david1.zhou@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Jammy Zhou" <Jammy.Zhou@amd.com>, "monk.liu" <monk.liu@amd.com>,
	"Marek Olšák" <marek.olsak@amd.com>,
	dri-devel@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	security@kernel.org,
	"Ilja Van Sprundel" <ivansprundel@ioactive.com>
Subject: [patch] drm/amdgpu: signedness bug in amdgpu_cs_parser_init()
Date: Fri, 25 Sep 2015 14:36:55 +0300	[thread overview]
Message-ID: <20150925113655.GA12962@mwanda> (raw)
In-Reply-To: <A3397C8B8B789E45844E7EC5DEAD89D06E91395A@satlexdag05.amd.com>

The "i" variable should be signed or it leads to a crash in the error
handling code.

Fixes: 1d263474c441 ('drm/amdgpu: unwind properly in amdgpu_cs_parser_init()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 749420f..cb3c274 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -156,7 +156,8 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 	uint64_t *chunk_array_user;
 	uint64_t *chunk_array;
 	struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
-	unsigned size, i;
+	unsigned size;
+	int i;
 	int ret;
 
 	if (cs->in.num_chunks == 0)

  reply	other threads:[~2015-09-25 11:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <13E61BCA7787794E89BDF39B8DE40C024D12E9F63F@ioaexchange.ioactive.local>
2015-09-23 10:59 ` [patch 1/4] drm/amdgpu: unwind properly in amdgpu_cs_parser_init() Dan Carpenter
2015-09-23 14:16   ` Christian König
2015-09-23 17:13     ` Alex Deucher
2015-09-24  7:56       ` Dan Carpenter
2015-09-24 12:56         ` Deucher, Alexander
2015-09-25 11:36           ` Dan Carpenter [this message]
2015-09-25 11:36             ` [patch] drm/amdgpu: signedness bug " Dan Carpenter
2015-09-29 17:44             ` Alex Deucher
2015-09-29 17:44               ` Alex Deucher
2015-09-23 11:00 ` [patch 2/4] drm/amdgpu: integer overflow in amdgpu_info_ioctl() Dan Carpenter
2015-09-23 11:00 ` [patch 3/4] drm/amdgpu: info leak in amdgpu_gem_metadata_ioctl() Dan Carpenter
2015-09-23 11:00 ` [patch 4/4] drm/amdgpu: integer overflow in amdgpu_mode_dumb_create() Dan Carpenter

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