From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
devel@driverdev.osuosl.org,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Kevin Hilman <khilman@baylibre.com>,
linux-amlogic@lists.infradead.org,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Colin Ian King <colin.king@canonical.com>,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 015/459] media: meson: add missing allocation failure check on new_buf
Date: Fri, 14 Feb 2020 10:54:25 -0500 [thread overview]
Message-ID: <20200214160149.11681-15-sashal@kernel.org> (raw)
In-Reply-To: <20200214160149.11681-1-sashal@kernel.org>
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit 11e0e167d071a28288a7a0a211d48c571d19b56f ]
Currently if the allocation of new_buf fails then a null pointer
dereference occurs when assiging new_buf->vb. Avoid this by returning
early on a memory allocation failure as there is not much more can
be done at this point.
Addresses-Coverity: ("Dereference null return")
Fixes: 3e7f51bd9607 ("media: meson: add v4l2 m2m video decoder driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/meson/vdec/vdec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c
index 0a1a04fd5d13d..8dd1396909d7e 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -133,6 +133,8 @@ vdec_queue_recycle(struct amvdec_session *sess, struct vb2_buffer *vb)
struct amvdec_buffer *new_buf;
new_buf = kmalloc(sizeof(*new_buf), GFP_KERNEL);
+ if (!new_buf)
+ return;
new_buf->vb = vb;
mutex_lock(&sess->bufs_recycle_lock);
--
2.20.1
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next parent reply other threads:[~2020-02-14 16:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200214160149.11681-1-sashal@kernel.org>
2020-02-14 15:54 ` Sasha Levin [this message]
2020-02-14 15:58 ` [PATCH AUTOSEL 5.4 272/459] staging: rtl8188: avoid excessive stack usage Sasha Levin
2020-02-14 15:59 ` [PATCH AUTOSEL 5.4 308/459] vme: bridges: reduce " Sasha Levin
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