PHP :: Bug #72505 :: readfile() mangles files larger than 2G

Bug #72505

readfile() mangles files larger than 2G

Submitted:

2016-06-27 12:41 UTC

Modified:

2016-09-13 13:50 UTC

Votes:	1
Avg. Score:	3.0 ± 0.0
Reproduced:	1 of 1 (100.0%)
Same Version:	1 (100.0%)
Same OS:	1 (100.0%)

From:

mueller at relog dot ch

Assigned:

cmb (profile)

Status:

Closed

Package:

Filesystem function related

PHP Version:

7.0.8

OS:

SuSE linux

Private report:

CVE-ID:

None

View Developer Edit

[2016-06-27 12:41 UTC] mueller at relog dot ch

Description:
------------
when readfile() is used to output a file larger than 2G, the output is not identical with the input.

Test script:
---------------
# output mangled for files larger than 2G
bash:> dd if=largefile of=aa bs=1M count=2049 2>/dev/null; php -r 'readfile("aa");' >bb; crc32 aa bb 

b5c09ad4        aa
2e905867        bb


Expected result:
----------------
same crc32 for aa and bb (which is the case if you use count=2047)

Actual result:
--------------
different crc32 for aa and bb

Patches

readfile_largefile.patch (last revision 2016-06-27 13:52 UTC by [email protected])

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports

[2016-06-27 12:48 UTC] mueller at search dot ch

Fixed Bug Type

[2016-06-27 12:49 UTC] mueller at relog dot ch

-: mueller at search dot ch +: mueller at relog dot ch

[2016-06-27 12:49 UTC] mueller at relog dot ch

Email address is not well protected...

[2016-06-27 13:19 UTC] mueller at relog dot ch

Please change status to "Private rerport: Yes" if possible, thanks.

[2016-06-27 13:52 UTC] [email protected]

The following patch has been added/updated:

Patch Name: readfile_largefile.patch
Revision:   1467035528
URL:        https://bugs.php.net/patch-display.php?bug=72505&patch=readfile_largefile.patch&revision=1467035528

[2016-06-28 03:12 UTC] [email protected]

Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c73a2f7f45fc4ad6bf45f5f6929606725f285cd7
Log: Fixed bug #72505 (readfile() mangles files larger than 2G)

[2016-06-28 03:12 UTC] [email protected]

-Status: Open +Status: Closed

[2016-07-06 05:47 UTC] [email protected]

Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c73a2f7f45fc4ad6bf45f5f6929606725f285cd7
Log: Fixed bug #72505 (readfile() mangles files larger than 2G)

[2016-07-20 11:30 UTC] [email protected]

Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c73a2f7f45fc4ad6bf45f5f6929606725f285cd7
Log: Fixed bug #72505 (readfile() mangles files larger than 2G)

[2016-09-13 11:45 UTC] [email protected]

-Type: Documentation Problem +Type: Bug -Assigned To: +Assigned To: cmb

[2016-09-13 13:50 UTC] [email protected]

Didn't want to assign this closed bug to me.

[2016-09-13 13:52 UTC] [email protected]

Related To: Bug #73069

[2016-09-16 12:57 UTC] [email protected]

Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ac07008bb7eeee46c9e45c976fc3dc264f0eadff
Log: Fixed bug #72505 (readfile() mangles files larger than 2G)

[2016-10-17 10:08 UTC] [email protected]

Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=ac07008bb7eeee46c9e45c976fc3dc264f0eadff
Log: Fixed bug #72505 (readfile() mangles files larger than 2G)

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