[FFmpeg-devel] [PATCH] avformat/vividas: Use signed n in read_sb_block()
Michael Niedermayer
michael at niedermayer.cc
Mon Feb 15 22:31:23 EET 2021
Fixes: OOM
Fixes: 27780/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5097985075314688
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavformat/vividas.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/vividas.c b/libavformat/vividas.c
index d745770dc4..b172a48b29 100644
--- a/libavformat/vividas.c
+++ b/libavformat/vividas.c
@@ -235,7 +235,7 @@ static uint8_t *read_sb_block(AVIOContext *src, unsigned *size,
uint8_t *buf;
uint8_t ibuf[8], sbuf[8];
uint32_t k2;
- unsigned n;
+ int n;
if (avio_read(src, ibuf, 8) < 8)
return NULL;
--
2.17.1
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