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Fix memory leak (OSS-Fuzz issue 33220)

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Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2021-04-19 20:46:08 +02:00
parent 3cd9fb377f
commit 6d0595b443
1 changed files with 7 additions and 10 deletions
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17
src/textord/tordmain.cpp
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@ -162,26 +162,22 @@ void SetBlobStrokeWidth(Image pix, BLOBNBOX *blob) {
void assign_blobs_to_blocks2(Image pix,
BLOCK_LIST *blocks, // blocks to process
TO_BLOCK_LIST *port_blocks) { // output list
BLOCK *block; // current block
BLOBNBOX *newblob; // created blob
C_BLOB *blob; // current blob
BLOCK_IT block_it = blocks;
C_BLOB_IT blob_it; // iterator
BLOBNBOX_IT port_box_it; // iterator
// destination iterator
TO_BLOCK_IT port_block_it = port_blocks;
TO_BLOCK *port_block; // created block
for (block_it.mark_cycle_pt(); !block_it.cycled_list(); block_it.forward()) {
block = block_it.data();
port_block = new TO_BLOCK(block);
auto block = block_it.data();
auto port_block = new TO_BLOCK(block);
// Convert the good outlines to block->blob_list
port_box_it.set_to_list(&port_block->blobs);
blob_it.set_to_list(block->blob_list());
for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
blob = blob_it.extract();
newblob = new BLOBNBOX(blob); // Convert blob to BLOBNBOX.
auto blob = blob_it.extract();
auto newblob = new BLOBNBOX(blob); // Convert blob to BLOBNBOX.
newblob->set_owns_cblob(true);
SetBlobStrokeWidth(pix, newblob);
port_box_it.add_after_then_move(newblob);
@ -193,8 +189,9 @@ void assign_blobs_to_blocks2(Image pix,
port_box_it.set_to_list(&port_block->noise_blobs);
blob_it.set_to_list(block->reject_blobs());
for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
blob = blob_it.extract();
newblob = new BLOBNBOX(blob); // Convert blob to BLOBNBOX.
auto blob = blob_it.extract();
auto newblob = new BLOBNBOX(blob); // Convert blob to BLOBNBOX.
newblob->set_owns_cblob(true);
SetBlobStrokeWidth(pix, newblob);
port_box_it.add_after_then_move(newblob);
}