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Merge changes I479bc487,I39864691,I5d486c2c,I186d13be into main

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* changes:
  mux{edit,internal}: fix leaks on error
  ExUtilInitCommandLineArguments: fix leak on error
  anim_util: fix leaks on error
  gif2webp: fix segfault on OOM
This commit is contained in:
Pascal Massimino 2022-04-05 05:51:53 +00:00 committed by Gerrit Code Review
commit e8e77b9c47
5 changed files with 21 additions and 9 deletions
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7
examples/anim_util.c
View File

@ -241,7 +241,7 @@ static int ReadAnimatedWebP(const char filename[],
image->bgcolor = anim_info.bgcolor;
// Allocate frames.
if (!AllocateFrames(image, anim_info.frame_count)) return 0;
if (!AllocateFrames(image, anim_info.frame_count)) goto End;
// Decode frames.
while (WebPAnimDecoderHasMoreFrames(dec)) {
@ -558,7 +558,10 @@ static int ReadAnimatedGIF(const char filename[], AnimatedImage* const image,
}
}
// Allocate frames.
AllocateFrames(image, frame_count);
if (!AllocateFrames(image, frame_count)) {
DGifCloseFile(gif, NULL);
return 0;
}
canvas_width = image->canvas_width;
canvas_height = image->canvas_height;

6
examples/example_util.c
View File

@ -103,7 +103,10 @@ int ExUtilInitCommandLineArguments(int argc, const char* argv[],
}
args->own_argv_ = 1;
args->argv_ = (const char**)WebPMalloc(MAX_ARGC * sizeof(*args->argv_));
if (args->argv_ == NULL) return 0;
if (args->argv_ == NULL) {
ExUtilDeleteCommandLineArguments(args);
return 0;
}
argc = 0;
for (cur = strtok((char*)args->argv_data_.bytes, sep);
@ -111,6 +114,7 @@ int ExUtilInitCommandLineArguments(int argc, const char* argv[],
cur = strtok(NULL, sep)) {
if (argc == MAX_ARGC) {
fprintf(stderr, "ERROR: Arguments limit %d reached\n", MAX_ARGC);
ExUtilDeleteCommandLineArguments(args);
return 0;
}
assert(strlen(cur) != 0);

7
examples/gif2webp.c
View File

@ -314,8 +314,11 @@ int main(int argc, const char* argv[]) {
frame.use_argb = 1;
if (!WebPPictureAlloc(&frame)) goto End;
GIFClearPic(&frame, NULL);
WebPPictureCopy(&frame, &curr_canvas);
WebPPictureCopy(&frame, &prev_canvas);
if (!(WebPPictureCopy(&frame, &curr_canvas) &&
WebPPictureCopy(&frame, &prev_canvas))) {
fprintf(stderr, "Error allocating canvas.\n");
goto End;
}
// Background color.
GIFGetBackgroundColor(gif->SColorMap, gif->SBackGroundColor,

1
src/mux/muxedit.c
View File

@ -70,6 +70,7 @@ void WebPMuxDelete(WebPMux* mux) {
err = ChunkAssignData(&chunk, data, copy_data, tag); \
if (err == WEBP_MUX_OK) { \
err = ChunkSetHead(&chunk, (LIST)); \
if (err != WEBP_MUX_OK) ChunkRelease(&chunk); \
} \
return err; \
}

9
src/mux/muxinternal.c
View File

@ -155,17 +155,18 @@ WebPMuxError ChunkSetHead(WebPChunk* const chunk,
WebPMuxError ChunkAppend(WebPChunk* const chunk,
WebPChunk*** const chunk_list) {
WebPMuxError err;
assert(chunk_list != NULL && *chunk_list != NULL);
if (**chunk_list == NULL) {
ChunkSetHead(chunk, *chunk_list);
err = ChunkSetHead(chunk, *chunk_list);
} else {
WebPChunk* last_chunk = **chunk_list;
while (last_chunk->next_ != NULL) last_chunk = last_chunk->next_;
ChunkSetHead(chunk, &last_chunk->next_);
*chunk_list = &last_chunk->next_;
err = ChunkSetHead(chunk, &last_chunk->next_);
if (err == WEBP_MUX_OK) *chunk_list = &last_chunk->next_;
}
return WEBP_MUX_OK;
return err;
}
//------------------------------------------------------------------------------