diff options
Diffstat (limited to 'core/src/fxcodec')
| -rw-r--r-- | core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/j2k.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/j2k.c b/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/j2k.c index 66db53b4db..46f50eeb8a 100644 --- a/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/j2k.c +++ b/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/j2k.c @@ -3684,6 +3684,15 @@ OPJ_BOOL j2k_read_ppm_v3 ( OPJ_BYTE *new_ppm_data; /* Increase the size of ppm_data to add the new Ippm series*/ assert(l_cp->ppm_data == l_cp->ppm_buffer && "We need ppm_data and ppm_buffer to be the same when reallocating"); + /* Overflow check */ + if ((l_cp->ppm_len + l_N_ppm) < l_N_ppm) { + opj_free(l_cp->ppm_data); + l_cp->ppm_data = NULL; + l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */ + l_cp->ppm_len = 0; + opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (complete) Ippm series\n"); + return OPJ_FALSE; + } new_ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm); if (! new_ppm_data) { opj_free(l_cp->ppm_data); @@ -3707,6 +3716,16 @@ OPJ_BOOL j2k_read_ppm_v3 ( if (l_remaining_data) { OPJ_BYTE *new_ppm_data; assert(l_cp->ppm_data == l_cp->ppm_buffer && "We need ppm_data and ppm_buffer to be the same when reallocating"); + + /* Overflow check */ + if ((l_cp->ppm_len + l_N_ppm) < l_N_ppm) { + opj_free(l_cp->ppm_data); + l_cp->ppm_data = NULL; + l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */ + l_cp->ppm_len = 0; + opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (complete) Ippm series\n"); + return OPJ_FALSE; + } new_ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm); if (! new_ppm_data) { opj_free(l_cp->ppm_data); @@ -8598,6 +8617,11 @@ OPJ_BOOL opj_j2k_read_SPCod_SPCoc( opj_j2k_t *p_j2k, for (i = 0; i < l_tccp->numresolutions; ++i) { opj_read_bytes(l_current_ptr,&l_tmp ,1); /* SPcoc (I_i) */ ++l_current_ptr; + /* Precinct exponent 0 is only allowed for lowest resolution level (Table A.21) */ + if ((i != 0) && (((l_tmp & 0xf) == 0) || ((l_tmp >> 4) == 0))) { + opj_event_msg(p_manager, EVT_ERROR, "Invalid precinct size\n"); + return OPJ_FALSE; + } l_tccp->prcw[i] = l_tmp & 0xf; l_tccp->prch[i] = l_tmp >> 4; } |