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Fix libtiff cleanup

Open radarhere opened this issue 6 months ago • 0 comments

Alternative to #8992

I've found that since #8954 was merged, there have been intermittent errors.

  • 'cannot identify image file' - https://github.com/python-pillow/Pillow/actions/runs/15371601710/job/43251458128
  • 'attempt to seek outside sequence' - https://github.com/python-pillow/Pillow/actions/runs/15370070907/job/43247953625
  • 'unrecognized data stream contents when reading image file' - https://github.com/python-pillow/Pillow/actions/runs/15370070907/job/43247953635

Testing, I find that the minimal change to fix the problem is to restore one of the calls to TIFFCleanup, and then to set clientstate->tiff = NULL to prevent ImagingLibTiffEncodeCleanup from running afterwards.

radarhere avatar Jun 07 '25 22:06 radarhere