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Do not memset when allocation fails 

Also remove some nearby unused code
This commit is contained in:
Martijn van Beurden 2022-08-12 16:30:23 +02:00
parent fbb6cb5c07
commit c65483e2c2
2 changed files with 12 additions and 18 deletions
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6
oss-fuzz/fuzzer_encoder_v2.cc
View File

@ -166,7 +166,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
}
/* Disable alloc check if requested */
if(data_bools[14])
if(encoder_valid && data_bools[14])
alloc_check_threshold = INT32_MAX;
/* data_bools[15] are spare */
@ -286,7 +286,9 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
state == FLAC__STREAM_ENCODER_UNINITIALIZED ||
state == FLAC__STREAM_ENCODER_CLIENT_ERROR ||
((state == FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR ||
state == FLAC__STREAM_ENCODER_FRAMING_ERROR) &&
state == FLAC__STREAM_ENCODER_FRAMING_ERROR ||
(state == FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR &&
FLAC__stream_encoder_get_verify_decoder_state(encoder) == FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR)) &&
alloc_check_threshold < INT32_MAX))) {
fprintf(stderr,"-----\nERROR: stream encoder returned %s\n-----\n",FLAC__stream_encoder_get_resolved_state_string(encoder));
if(state == FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA) {

16
src/libFLAC/stream_encoder.c
View File

@ -2576,25 +2576,17 @@ FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, uint32_t new_blocksize)
for(i = 0; ok && i < encoder->protected_->channels; i++) {
ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_unaligned[i], &encoder->private_->integer_signal[i]);
if(ok) {
memset(encoder->private_->integer_signal[i], 0, sizeof(FLAC__int32)*4);
encoder->private_->integer_signal[i] += 4;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#if 0 /* @@@ currently unused */
if(encoder->protected_->max_lpc_order > 0)
ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_unaligned[i], &encoder->private_->real_signal[i]);
#endif
#endif
}
}
for(i = 0; ok && i < 2; i++) {
ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_mid_side_unaligned[i], &encoder->private_->integer_signal_mid_side[i]);
if(ok) {
memset(encoder->private_->integer_signal_mid_side[i], 0, sizeof(FLAC__int32)*4);
encoder->private_->integer_signal_mid_side[i] += 4;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#if 0 /* @@@ currently unused */
if(encoder->protected_->max_lpc_order > 0)
ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize+OVERREAD_, &encoder->private_->real_signal_mid_side_unaligned[i], &encoder->private_->real_signal_mid_side[i]);
#endif
#endif
}
}
ok = ok && FLAC__memory_alloc_aligned_int64_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_33bit_side_unaligned, &encoder->private_->integer_signal_33bit_side);
#ifndef FLAC__INTEGER_ONLY_LIBRARY