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Do not create core image in seek(), when load() might not run

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This commit is contained in:
Andrew Murray 2024-10-08 20:48:32 +11:00
parent 949079bf36
commit a9b9a63614
1 changed files with 6 additions and 5 deletions
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11
src/PIL/TiffImagePlugin.py
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@ -1193,11 +1193,11 @@ class TiffImageFile(ImageFile.ImageFile):
if not self._seek_check(frame): if not self._seek_check(frame):
return return
self._seek(frame) self._seek(frame)
# Create a new core image object on second and if self._im is not None and (
# subsequent frames in the image. Image may be self.im.size != self._tile_size or self.im.mode != self.mode
# different size/mode. ):
Image._decompression_bomb_check(self._tile_size) # The core image will no longer be used
self.im = Image.core.new(self.mode, self._tile_size) self._im = None
def _seek(self, frame: int) -> None: def _seek(self, frame: int) -> None:
self.fp = self._fp self.fp = self._fp
@ -1279,6 +1279,7 @@ class TiffImageFile(ImageFile.ImageFile):
def load_prepare(self) -> None: def load_prepare(self) -> None:
if self._im is None: if self._im is None:
Image._decompression_bomb_check(self._tile_size)
self.im = Image.core.new(self.mode, self._tile_size) self.im = Image.core.new(self.mode, self._tile_size)
ImageFile.ImageFile.load_prepare(self) ImageFile.ImageFile.load_prepare(self)