Commit 093c2dd6 authored by Michael Niedermayer's avatar Michael Niedermayer

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/ffmpegSigned-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3ddc5e1f3cebca25ade54ee68159d305f210bf5f)
Signed-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent 99eb08f3
...@@ -131,7 +131,7 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh ...@@ -131,7 +131,7 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh
int stride, const uint8_t *buf, int buf_size) int stride, const uint8_t *buf, int buf_size)
{ {
RICEContext rc; RICEContext rc;
int val; unsigned val;
int ret; int ret;
int i, j; int i, j;
......
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