Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.

From:	deemoos at live dot nl	Date:	Mon, 06 Oct 2014 11:45:33 +0000
Subject:	Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
References:	1	Groups:	php.bugs
Request:	Send a blank email to php-bugs+get-187881@lists.php.net to get a copy of this message

Edit report at https://bugs.php.net/bug.php?id=66443&edit=1

 ID:                 66443
 Comment by:         deemoos at live dot nl
 Reported by:        ianbeckett dot 0405 at gmail dot com
 Summary:            Corrupt EXIF header: maximum directory nesting level
                     reached for some cameras.
 Status:             Open
 Type:               Bug
 Package:            EXIF related
 Operating System:   Linux
 PHP Version:        5.5.7
 Block user comment: N
 Private report:     N

 New Comment:

Why is there no fix included in new PHP versions?


Previous Comments:
------------------------------------------------------------------------
[2014-08-22 10:15:42] hello at wentsch dot me

Thanks for your patch, took me a while to figure out it's a problem with the EXIF produced by
my camera, which is a Fujifilm X10 fyi.

------------------------------------------------------------------------
[2014-01-08 19:42:41] ianbeckett dot 0405 at gmail dot com

Description:
------------
EXIF data from certain cameras is not read correctly by exif_read_data(), it fails part way through
with the error "Corrupt EXIF header: maximum directory nesting level reached".

My camera is a Fujifilm F770EXR and the two links below are additional reports of the same problem
with Fujifilm cameras. I don't know if any other makes are affected.

http://stackoverflow.com/questions/11584238/php-corrupt-exif-data-error-with-fulifilm-photos

http://stackoverflow.com/questions/10075066/issues-extracting-exif-data-for-exif-2-3-using-php-version-5-2-9

I think the problem is due to the amount of extra tags Fujifilm include, causing the code in exif.c
to think the header is corrupt before it finishes reading it all.

I think it can be fixed by increasing the value of MAX_IFD_NESTING_LEVEL defined in ext/exif/exif.c.
I used a value of 200 and it appears to have resolved the problem on my installation.






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Edit this bug report at https://bugs.php.net/bug.php?id=66443&edit=1


   

Thread (9 messages)

• ianbeckett dot 0405 at gmail dot comWed, 08 Jan 2014 19:42:42 +0000
  • hello at wentsch dot meFri, 22 Aug 2014 10:15:42 +0000Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • deemoos at live dot nlMon, 06 Oct 2014 11:45:33 +0000Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • ianbeckett dot 0405 at gmail dot comMon, 06 Oct 2014 19:57:48 +0000Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • kalle@php.netWed, 03 Aug 2016 10:00:58 +0000Bug #66443 [Opn->Fbk]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • kalle@php.netFri, 05 Aug 2016 05:53:22 +0000Bug #66443 [Fbk->Csd]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • Heikki dot Vesanto at gmail dot comTue, 24 Oct 2017 00:03:18 +0000Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • kalle@php.netTue, 24 Oct 2017 01:04:45 +0000Bug #66443 [Csd]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.
  • Heikki dot Vesanto at gmail dot comTue, 24 Oct 2017 11:17:16 +0000Bug #66443 [Com]: Corrupt EXIF header: maximum directory nesting level reached for some cameras.