From: Colin King <colin.king@canonical.com>
To: Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hans.verkuil@cisco.com>,
linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] media: venus: venc: Fix potential null pointer dereference on pointer fmt
Date: Fri, 9 Jul 2021 13:30:25 +0100 [thread overview]
Message-ID: <20210709123025.456006-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Currently the call to find_format can potentially return a NULL to
fmt and the nullpointer is later dereferenced on the assignment of
pixmp->num_planes = fmt->num_planes. Fix this by adding a NULL pointer
check and returning NULL for the failure case.
Addresses-Coverity: ("Dereference null return")
Fixes: aaaa93eda64b ("[media] media: venus: venc: add video encoder files")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/media/platform/qcom/venus/venc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 8dd49d4f124c..1d62e38065d6 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -183,6 +183,8 @@ venc_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
else
return NULL;
fmt = find_format(inst, pixmp->pixelformat, f->type);
+ if (!fmt)
+ return NULL;
}
pixmp->width = clamp(pixmp->width, frame_width_min(inst),
--
2.31.1
reply other threads:[~2021-07-09 12:39 UTC|newest]
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