avcodec/wavpack: Fix 280:22: runtime error: left shift of negative value -1

Fixes: 653/clusterfuzz-testcase-5773837415219200 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago · 58f3469cc6
parent 5eb04570f6
commit 58f3469cc6
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@ -264,7 +264,7 @@ error:
 static inline int wv_get_value_integer(WavpackFrameContext *s, uint32_t *crc,
                                       int S)
 {
-    int bit;
+    unsigned bit;

    if (s->extra_bits) {
        S <<= s->extra_bits;