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[FFmpeg-devel,1/8] avcodec/apac: Clean padding space

Message ID 20240804205309.1978196-1-michael@niedermayer.cc
State New
Headers show
Series [FFmpeg-devel,1/8] avcodec/apac: Clean padding space | expand

Checks

Context Check Description
yinshiyou/make_fate_loongarch64 success Make fate finished
yinshiyou/make_loongarch64 warning New warnings during build
andriy/make_fate_x86 success Make fate finished
andriy/make_x86 warning New warnings during build

Commit Message

Michael Niedermayer Aug. 4, 2024, 8:53 p.m. UTC
Fixes: use-of-uninitialized-value
Fixes: 70842/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APAC_fuzzer-5758325067677696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/apac.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Michael Niedermayer Aug. 14, 2024, 3:10 p.m. UTC | #1
On Sun, Aug 04, 2024 at 10:53:02PM +0200, Michael Niedermayer wrote:
> Fixes: use-of-uninitialized-value
> Fixes: 70842/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APAC_fuzzer-5758325067677696
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  libavcodec/apac.c | 1 +
>  1 file changed, 1 insertion(+)

will apply the remeining 6 patches of this set

[...]
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Patch

diff --git a/libavcodec/apac.c b/libavcodec/apac.c
index f740fb5553b..068ad095300 100644
--- a/libavcodec/apac.c
+++ b/libavcodec/apac.c
@@ -159,6 +159,7 @@  static int apac_decode(AVCodecContext *avctx, AVFrame *frame,
     buf                = &s->bitstream[s->bitstream_index];
     buf_size          += s->bitstream_size;
     s->bitstream_size  = buf_size;
+    memset(buf + buf_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     frame->nb_samples = s->bitstream_size * 16 * 8;
     if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)