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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-30 21:11:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-07 19:29:28 +0200 |
| commit | a9fba357e5da41db41aa6d33efd5d8f9ffe49574 (patch) | |
| tree | b77f0635bc21b5048ae2b79923abdd45a09cc03d | |
| parent | ad609996e6467bcc1eba2a5cc1413b376e5bebec (diff) | |
| download | ffmpeg-a9fba357e5da41db41aa6d33efd5d8f9ffe49574.tar.gz | |
avcodec/loco: Fix integer overflow with large values from loco_get_rice()
Fixes: signed integer overflow: 155 + 2147483647 cannot be represented in type 'int'
Fixes: 23421/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LOCO_fuzzer-5652849097965568
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 3ddc5e1f3cebca25ade54ee68159d305f210bf5f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/loco.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/loco.c b/libavcodec/loco.c index e22d280b96..f9655c0bf5 100644 --- a/libavcodec/loco.c +++ b/libavcodec/loco.c @@ -129,7 +129,7 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh int stride, const uint8_t *buf, int buf_size, int step) { RICEContext rc; - int val; + unsigned val; int ret; int i, j; |