libavformat/oggparseflac.c:55: error: Integer Overflow L2
  ([0, +oo] - 24):unsigned32 by call to `bitstream_skip`.

libavformat/oggparseflac.c:53:13: Call
51. 
52.         bitstream_skip(&bc, 4 * 8); /* "FLAC" */
53.         if (bitstream_read(&bc, 8) != 1) /* unsupported major version */
                ^
54.             return -1;
55.         bitstream_skip(&bc, 8 + 16); /* minor version + header count */

libavcodec/bitstream.h:182:1: Parameter `bc->bits_left`
  180. 
  181. /* Return n bits from the buffer. n has to be in the 0-32 range. */
  182. static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)
       ^
  183. {
  184.     if (!n)

libavformat/oggparseflac.c:55:9: Call
53.         if (bitstream_read(&bc, 8) != 1) /* unsupported major version */
54.             return -1;
55.         bitstream_skip(&bc, 8 + 16); /* minor version + header count */
            ^
56.         bitstream_skip(&bc, 4 * 8); /* "fLaC" */
57. 

libavcodec/bitstream.h:240:1: Parameter `n`
  238. 
  239. /* Skip n bits in the buffer. */
  240. static inline void bitstream_skip(BitstreamContext *bc, unsigned n)
       ^
  241. {
  242.     if (n < bc->bits_left)

libavcodec/bitstream.h:243:9: Call
  241. {
  242.     if (n < bc->bits_left)
  243.         skip_remaining(bc, n);
               ^
  244.     else {
  245.         n -= bc->bits_left;

libavcodec/bitstream.h:229:1: <LHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `bc->bits_left`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: <RHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `n`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:236:5: Binary operation: ([0, +oo] - 24):unsigned32 by call to `bitstream_skip` 
    234.     bc->bits <<= n;
    235. #endif
    236.     bc->bits_left -= n;
             ^
    237. }
    238. 
