Out-of-memory in Function psd_malloc()

### Description
A Out-of-memory was discovered in psdump.
The issue is being triggered in function psd_malloc()

### Environment
Ubuntu 18.04, 64bit

### Reproduce
Command
git clone the Lastest Version firstly.
make && make install
./psdump poc

### With ASAN
Note: You can use ASAN for more direct verification.
Compile program with address sanitizer with this command:

obj-files = build/main.o build/Document.o build/Layer.o build/Record.o build/LayerGroup.o build/TextFormatter.o build/XmlFormatter.o build/PlistFormatter.o build/PsdParser.o build/JsonFormatter.o
build/lodepng.o
libpsd-objects = adjustment.o bevel_emboss.o bitmap.o blend.o boundary.o brightness_contrast.o channel_image.o channel_mixer.o color.o color_balance.o color_mode.o color_overlay.o
curves.o descriptor.o drop_shadow.o effects.o file_header.o fixed.o gaussian_blur.o gradient_blend.o gradient_fill.o gradient_map.o gradient_overlay.o hue_saturation.o image_data.o
image_resource.o inner_glow.o inner_shadow.o invert.o layer_mask.o levels.o outer_glow.o path.o pattern.o pattern_fill.o pattern_overlay.o photo_filter.o posterize.o psd.o psd_system.o
psd_zip.o rect.o satin.o selective_color.o solid_color.o stream.o stroke.o threshold.o thumbnail.o type_tool.o

psdump: build_dir build/libpsd-0.9 $(obj-files)
g++ -fsanitize=address $(obj-files) $(libpsd-objects) -o build/psdump

build/libpsd-0.9:
gcc -fsanitize=address -Ilibpsd-0.9/include -c libpsd-0.9/src/*.c
touch build/libpsd-0.9

build_dir:
mkdir -p build

build/main.o: src/main.cpp src/Document.h src/formatter/TextFormatter.h src/formatter/XmlFormatter.h src/formatter/JsonFormatter.h src/parser/PsdParser.h
g++ -fsanitize=address -c -Wno-write-strings -Ilibpsd-0.9/include src/main.cpp -o build/main.o
build/Document.o: src/Document.cpp src/Document.h
g++ -fsanitize=address -c src/Document.cpp -o build/Document.o
build/Layer.o: src/Layer.cpp src/Layer.h
g++ -fsanitize=address -c src/Layer.cpp -o build/Layer.o
build/Record.o: src/Record.cpp src/Record.h
g++ -fsanitize=address -c src/Record.cpp -o build/Record.o
build/LayerGroup.o: src/LayerGroup.cpp src/LayerGroup.h
g++ -fsanitize=address -c src/LayerGroup.cpp -o build/LayerGroup.o
build/TextFormatter.o: src/formatter/TextFormatter.cpp src/formatter/TextFormatter.h
g++ -fsanitize=address -c src/formatter/TextFormatter.cpp -o build/TextFormatter.o
build/PlistFormatter.o: src/formatter/PlistFormatter.cpp src/formatter/PlistFormatter.h
g++ -fsanitize=address -c src/formatter/PlistFormatter.cpp -o build/PlistFormatter.o
build/XmlFormatter.o: src/formatter/XmlFormatter.cpp src/formatter/XmlFormatter.h
g++ -fsanitize=address -c src/formatter/XmlFormatter.cpp -o build/XmlFormatter.o
build/JsonFormatter.o: src/formatter/JsonFormatter.cpp src/formatter/JsonFormatter.h
g++ -fsanitize=address -c src/formatter/JsonFormatter.cpp -o build/JsonFormatter.o
build/PsdParser.o: src/parser/PsdParser.cpp src/parser/PsdParser.h
g++ -fsanitize=address -c -Ilibpsd-0.9/include src/parser/PsdParser.cpp -o build/PsdParser.o

build/lodepng.o: src/lodepng/lodepng.cpp src/lodepng/lodepng.h
g++ -fsanitize=address-c src/lodepng/lodepng.cpp -o build/lodepng.o

.PHONY: clean, tidyup, shtest, test
test:
python test/test.py
shtest:
test/test.sh
tidyup:
rm -f build/*.o
rm -f build/libpsd-0.9
rm -f *.o
clean:
rm -rf build
rm -f *.o

### ASAN：

```
=================================================================
==31941==ERROR: AddressSanitizer: allocator is out of memory trying to allocate 0x7d7d7d7c bytes
#0 0x7f41f96b3c47 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x5574cfc64ee1 in psd_malloc libpsd-0.9/src/psd_system.c:10
#2 0x5574cfc4b264 in psd_get_image_resource libpsd-0.9/src/image_resource.c:320
#3 0x5574cfc64d17 in psd_main_loop libpsd-0.9/src/psd.c:186
#4 0x5574cfc64903 in psd_image_load_tag libpsd-0.9/src/psd.c:81
#5 0x5574cfc6498b in psd_image_load libpsd-0.9/src/psd.c:100
#6 0x5574cfbb813f in PsdParser::parse() src/parser/PsdParser.cpp:45
#7 0x5574cfbb35b3 in main src/main.cpp:163
#8 0x7f41f90ad0b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x240b2)

==31941==HINT: if you don't care about these errors you may set allocator_may_return_null=1
SUMMARY: AddressSanitizer: out-of-memory ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 in __interceptor_malloc
==31941==ABORTING

```

### POC
[000054.zip](https://github.com/alco/psdump/files/8444336/000054.zip)