#28451 [NEW]: Infinite recursion in ext/exif

From: rasmus@php.net Operating system: All PHP version: 4.3.6 PHP Bug Type: *Graphics related Bug description: Infinite recursion in ext/exif Description: ------------ This jpg (http://lerdorf.com/file.jpg) causes infinite recursion leading to a crash. I'll get to fixing it eventually, but can't right now and don't want it to go unfixed for too long, so if anybody else is keen... Reproduce code: --------------- <?php $exif=exif_read_data('http://lerdorf.com/file.jpg'); ?> Actual result: -------------- #1087 0x08090f77 in exif_process_IFD_TAG (ImageInfo=0xbfffcc50, dir_entry=0x1 <Address 0x1 out of bounds>, offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7, ReadNextIFD=1, tag_table=0x827ccc0) at /home/rasmus/php43/ext/exif/exif.c:2955 #1088 0x0809152e in exif_process_IFD_in_JPEG (ImageInfo=0xbfffcc50, dir_start=0x84f4bf0 "", offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7) at /home/rasmus/php43/ext/exif/exif.c:2990 #1089 0x08090f77 in exif_process_IFD_TAG (ImageInfo=0xbfffcc50, dir_entry=0x1 <Address 0x1 out of bounds>, offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7, ReadNextIFD=1, tag_table=0x827ccc0) at /home/rasmus/php43/ext/exif/exif.c:2955 #1090 0x0809152e in exif_process_IFD_in_JPEG (ImageInfo=0xbfffcc50, dir_start=0x84f4bf0 "", offset_base=0x84f4bac "MM", IFDlength=24989, displacement=12, section_index=7) at /home/rasmus/php43/ext/exif/exif.c:2990 -- Edit bug report at http://bugs.php.net/?id=28451&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28451&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28451&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=28451&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=28451&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=28451&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=28451&r=needscript Try newer version: http://bugs.php.net/fix.php?id=28451&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=28451&r=support Expected behavior: http://bugs.php.net/fix.php?id=28451&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=28451&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=28451&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=28451&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28451&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=28451&r=dst IIS Stability: http://bugs.php.net/fix.php?id=28451&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=28451&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=28451&r=float