libavcodec/wma.c:452: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/wma.c:450:25: Call
448.                 offset += bitstream_read(bc, frame_len_bits);
449.             } else {
450.                 level = ff_wma_get_large_val(bc);
                             ^
451.                 /** escape decode */
452.                 if (bitstream_read_bit(bc)) {

libavcodec/wma.c:392:5: Assignment
  390. {
  391.     /** consumes up to 34 bits */
  392.     int n_bits = 8;
           ^
  393.     /** decode length */
  394.     if (bitstream_read_bit(bc)) {

libavcodec/wma.c:402:12: Call
  400.         }
  401.     }
  402.     return bitstream_read(bc, n_bits);
                  ^
  403. }
  404. 

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

libavcodec/wma.c:452:21: Call
450.                 level = ff_wma_get_large_val(bc);
451.                 /** escape decode */
452.                 if (bitstream_read_bit(bc)) {
                         ^
453.                     if (bitstream_read_bit(bc)) {
454.                         if (bitstream_read_bit(bc)) {

libavcodec/bitstream.h:145:1: Parameter `bc->bits_left`
  143. 
  144. /* Return one bit from the buffer. */
  145. static inline unsigned bitstream_read_bit(BitstreamContext *bc)
       ^
  146. {
  147.     if (!bc->bits_left)

libavcodec/bitstream.h:150:12: Call
  148.         refill_64(bc);
  149. 
  150.     return get_val(bc, 1);
                  ^
  151. }
  152. 

libavcodec/bitstream.h:130:1: <LHS trace>
128. }
129. 
130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
     ^
131. {
132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: Parameter `bc->bits_left`
    128. }
    129. 
    130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
         ^
    131. {
    132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: <RHS trace>
128. }
129. 
130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
     ^
131. {
132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: Parameter `n`
    128. }
    129. 
    130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
         ^
    131. {
    132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:139:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `bitstream_read_bit` 
    137.     bc->bits <<= n;
    138. #endif
    139.     bc->bits_left -= n;
             ^
    140. 
    141.     return ret;
