libavcodec/gsmdec_template.c:131: error: Integer Overflow L2
  ([1, +oo] - 5):unsigned32 by call to `bitstream_read`.

libavcodec/gsmdec_template.c:131:30: Call
129.     lar[0] = decode_log_area(bitstream_read(bc, 6), 13107,  1 << 15);
130.     lar[1] = decode_log_area(bitstream_read(bc, 6), 13107,  1 << 15);
131.     lar[2] = decode_log_area(bitstream_read(bc, 5), 13107, (1 << 14) + 2048 * 2);
                                  ^
132.     lar[3] = decode_log_area(bitstream_read(bc, 5), 13107, (1 << 14) - 2560 * 2);
133.     lar[4] = decode_log_area(bitstream_read(bc, 4), 19223, (1 << 13) +   94 * 2);

libavcodec/bitstream.h:183:1: Parameter `n`
  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/bitstream.h:194:12: Call
  192.     }
  193. 
  194.     return get_val(bc, n);
                  ^
  195. }
  196. 

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: ([1, +oo] - 5):unsigned32 by call to `bitstream_read` 
    137.     bc->bits <<= n;
    138. #endif
    139.     bc->bits_left -= n;
             ^
    140. 
    141.     return ret;
