libavcodec/g726.c:368: error: Null Dereference
  pointer `&gb->buffer` last assigned on line 365 could be null and is dereferenced by call to `get_bits()` at line 368, column 37.

libavcodec/g726.c:357:1: start of procedure g726_decode_frame()
355. #endif
356. 
357. static int g726_decode_frame(AVCodecContext *avctx,
     ^
358.                              void *data, int *data_size,
359.                              const uint8_t *buf, int buf_size)

libavcodec/g726.c:361:5: 
359.                              const uint8_t *buf, int buf_size)
360. {
361.     G726Context *c = avctx->priv_data;
         ^
362.     short *samples = data;
363.     GetBitContext gb;

libavcodec/g726.c:362:5: 
360. {
361.     G726Context *c = avctx->priv_data;
362.     short *samples = data;
         ^
363.     GetBitContext gb;
364. 

libavcodec/g726.c:365:5: 
363.     GetBitContext gb;
364. 
365.     init_get_bits(&gb, buf, buf_size * 8);
         ^
366. 
367.     while (get_bits_count(&gb) + c->code_size <= buf_size*8)

libavcodec/bitstream.h:719:1: start of procedure init_get_bits()
  717.  * @param bit_size the size of the buffer in bits
  718.  */
  719. static inline void init_get_bits(GetBitContext *s,
       ^
  720.                    const uint8_t *buffer, int bit_size)
  721. {

libavcodec/bitstream.h:722:5: 
  720.                    const uint8_t *buffer, int bit_size)
  721. {
  722.     int buffer_size= (bit_size+7)>>3;
           ^
  723.     if(buffer_size < 0 || bit_size < 0) {
  724.         buffer_size = bit_size = 0;

libavcodec/bitstream.h:723:8: Taking true branch
  721. {
  722.     int buffer_size= (bit_size+7)>>3;
  723.     if(buffer_size < 0 || bit_size < 0) {
              ^
  724.         buffer_size = bit_size = 0;
  725.         buffer = NULL;

libavcodec/bitstream.h:724:9: 
  722.     int buffer_size= (bit_size+7)>>3;
  723.     if(buffer_size < 0 || bit_size < 0) {
  724.         buffer_size = bit_size = 0;
               ^
  725.         buffer = NULL;
  726.     }

libavcodec/bitstream.h:725:9: 
  723.     if(buffer_size < 0 || bit_size < 0) {
  724.         buffer_size = bit_size = 0;
  725.         buffer = NULL;
               ^
  726.     }
  727. 

libavcodec/bitstream.h:728:5: 
  726.     }
  727. 
  728.     s->buffer= buffer;
           ^
  729.     s->size_in_bits= bit_size;
  730.     s->buffer_end= buffer + buffer_size;

libavcodec/bitstream.h:729:5: 
  727. 
  728.     s->buffer= buffer;
  729.     s->size_in_bits= bit_size;
           ^
  730.     s->buffer_end= buffer + buffer_size;
  731. #ifdef ALT_BITSTREAM_READER

libavcodec/bitstream.h:730:5: 
  728.     s->buffer= buffer;
  729.     s->size_in_bits= bit_size;
  730.     s->buffer_end= buffer + buffer_size;
           ^
  731. #ifdef ALT_BITSTREAM_READER
  732.     s->index=0;

libavcodec/bitstream.h:732:5: 
  730.     s->buffer_end= buffer + buffer_size;
  731. #ifdef ALT_BITSTREAM_READER
  732.     s->index=0;
           ^
  733. #elif defined LIBMPEG2_BITSTREAM_READER
  734.     s->buffer_ptr = (uint8_t*)((intptr_t)buffer&(~1));

libavcodec/bitstream.h:742:1: return from a call to init_get_bits
  740.     skip_bits_long(s, 0);
  741. #endif
  742. }
       ^
  743. 
  744. static inline void align_get_bits(GetBitContext *s)

libavcodec/g726.c:367:12: 
365.     init_get_bits(&gb, buf, buf_size * 8);
366. 
367.     while (get_bits_count(&gb) + c->code_size <= buf_size*8)
                ^
368.         *samples++ = g726_decode(c, get_bits(&gb, c->code_size));
369. 

libavcodec/bitstream.h:438:1: start of procedure get_bits_count()
  436.         ((uint32_t)name##_cache)
  437. 
  438. static inline int get_bits_count(GetBitContext *s){
       ^
  439.     return s->index;
  440. }

libavcodec/bitstream.h:439:5: 
  437. 
  438. static inline int get_bits_count(GetBitContext *s){
  439.     return s->index;
           ^
  440. }
  441. 

libavcodec/bitstream.h:440:1: return from a call to get_bits_count
  438. static inline int get_bits_count(GetBitContext *s){
  439.     return s->index;
  440. }
       ^
  441. 
  442. static inline void skip_bits_long(GetBitContext *s, int n){

libavcodec/g726.c:367:12: Loop condition is true. Entering loop body
365.     init_get_bits(&gb, buf, buf_size * 8);
366. 
367.     while (get_bits_count(&gb) + c->code_size <= buf_size*8)
                ^
368.         *samples++ = g726_decode(c, get_bits(&gb, c->code_size));
369. 

libavcodec/g726.c:368:9: 
366. 
367.     while (get_bits_count(&gb) + c->code_size <= buf_size*8)
368.         *samples++ = g726_decode(c, get_bits(&gb, c->code_size));
             ^
369. 
370.     if(buf_size*8 != get_bits_count(&gb))

libavcodec/bitstream.h:616:1: start of procedure get_bits()
  614.  * Note, the alt bitstream reader can read up to 25 bits, but the libmpeg2 reader can't
  615.  */
  616. static inline unsigned int get_bits(GetBitContext *s, int n){
       ^
  617.     register int tmp;
  618.     OPEN_READER(re, s)

libavcodec/bitstream.h:618:5: 
  616. static inline unsigned int get_bits(GetBitContext *s, int n){
  617.     register int tmp;
  618.     OPEN_READER(re, s)
           ^
  619.     UPDATE_CACHE(re, s)
  620.     tmp= SHOW_UBITS(re, s, n);

libavcodec/bitstream.h:619:5: 
  617.     register int tmp;
  618.     OPEN_READER(re, s)
  619.     UPDATE_CACHE(re, s)
           ^
  620.     tmp= SHOW_UBITS(re, s, n);
  621.     LAST_SKIP_BITS(re, s, n)
