[stable22] Prevent loading images that would require too much memory. #30603
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For most image formats, the header specifies the width/height. PHP allocates an image object from that size, even if the actual image data is much smaller. This image object size is not limited by the limit configured in PHP. The memory limit can be configured through "config.php" setting "preview_max_memory" and defaults to 128 MBytes which should be enough for most images without filling up all memory. Signed-off-by: Joachim Bauch <bauch@struktur.de>
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Jan 11, 2022
nickvergessen
approved these changes
Jan 11, 2022
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backport of #30291