Re: [FFmpeg-devel] [PATCH 11/12] avcodec/loco: Check for end of input in the first line

2019-09-26 Thread Michael Niedermayer 
On Thu, Sep 26, 2019 at 10:05:38AM +0200, Paul B Mahol wrote:
> lgtm

will apply

thx

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Re: [FFmpeg-devel] [PATCH 11/12] avcodec/loco: Check for end of input in the first line

2019-09-26 Thread Paul B Mahol 
lgtm

On 9/25/19, Michael Niedermayer  wrote:
> Fixes: Timeout (85sec -> 0.1sec)
> Fixes:
> 17634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5666410809786368
>
> Found-by: continuous fuzzing process
> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer 
> ---
>  libavcodec/loco.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/libavcodec/loco.c b/libavcodec/loco.c
> index d8bf68a100..e891d83ece 100644
> --- a/libavcodec/loco.c
> +++ b/libavcodec/loco.c
> @@ -155,6 +155,8 @@ static int loco_decode_plane(LOCOContext *l, uint8_t
> *data, int width, int heigh
>  /* restore top line */
>  for (i = 1; i < width; i++) {
>  val = loco_get_rice();
> +if (val == INT_MIN)
> +   return AVERROR_INVALIDDATA;
>  data[i] = data[i - 1] + val;
>  }
>  data += stride;
> --
> 2.23.0
>
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[FFmpeg-devel] [PATCH 11/12] avcodec/loco: Check for end of input in the first line

2019-09-25 Thread Michael Niedermayer 
Fixes: Timeout (85sec -> 0.1sec)
Fixes: 
17634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5666410809786368

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer 
---
 libavcodec/loco.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/loco.c b/libavcodec/loco.c
index d8bf68a100..e891d83ece 100644
--- a/libavcodec/loco.c
+++ b/libavcodec/loco.c
@@ -155,6 +155,8 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, 
int width, int heigh
 /* restore top line */
 for (i = 1; i < width; i++) {
 val = loco_get_rice();
+if (val == INT_MIN)
+   return AVERROR_INVALIDDATA;
 data[i] = data[i - 1] + val;
 }
 data += stride;
-- 
2.23.0

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