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authorMichael Niedermayer <michael@niedermayer.cc>2020-06-09 22:14:59 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2020-07-05 01:47:56 +0200
commit035d30ba1739e3769da72f56768409b713e98967 (patch)
tree14b64acd1d25b9e56393d38e5711f137f2981285
parent4f92e48d5c45c493f4214bf98577c5f03d6180f5 (diff)
downloadffmpeg-035d30ba1739e3769da72f56768409b713e98967.tar.gz
avcodec/loco: Fix signed integer overflow in loco_get_rice()
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Fixes: 22975/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5658160970072064 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit aa88cdfd90f5da0683cd6556c75a5ba5740a1c27) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/loco.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/loco.c b/libavcodec/loco.c
index e891d83ece..d0cedf577d 100644
--- a/libavcodec/loco.c
+++ b/libavcodec/loco.c
@@ -82,7 +82,7 @@ static inline void loco_update_rice_param(RICEContext *r, int val)
static inline int loco_get_rice(RICEContext *r)
{
- int v;
+ unsigned v;
if (r->run > 0) { /* we have zero run */
r->run--;
loco_update_rice_param(r, 0);