[wp-trac] [WordPress Trac] #52179: Update theme---class-pclzip fatal error with PHP 8.0

[WordPress Trac]

#52179: Update theme---class-pclzip fatal error with PHP 8.0
--------------------------+-----------------------------
 Reporter:  liuzhuahui    |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.6
 Severity:  normal        |   Keywords:  needs-patch
  Focuses:                |
--------------------------+-----------------------------
 {{{
 2020/12/27 11:35:54 [error] 27366#27366: *2308 FastCGI sent in stderr:
 "PHP message: PHP Fatal error:  Uncaught ValueError: fread(): Argument #2
 ($length) must be greater than 0 in /wp-admin/includes/class-
 pclzip.php:4212
 Stack trace:
 #0 /wp-admin/includes/class-pclzip.php(4212): fread(Resource id #108, 0)
 #1 /wp-admin/includes/class-pclzip.php(3518):
 PclZip->privExtractFileAsString(Array, '', Array)
 #2 /wp-admin/includes/class-pclzip.php(811):
 PclZip->privExtractByRule(Array, './', '', false, Array)
 #3 /wp-admin/includes/file.php(1639): PclZip->extract(77006)
 #4 /wp-admin/includes/file.php(1476): _unzip_file_pclzip('/tmp/bb.1....',
 '/usr/share/ngin...', Array)
 #5 /wp-admin/includes/class-wp-upgrader.php(328):
 unzip_file('/tmp/bb.1....', '/usr/share/ngin...')
 #6 /wp-admin/includes/class-wp-upgrader.php(779):
 WP_Upgrader->unpack_package('/tmp/bb.1" while reading upstream, , server:
 xxx.com, request: "GET /wp-admin/update.php?action=update-selected-
 themes&themes=bb&_wpnonce=4cf1c925d2 HTTP/2.0", upstream:
 "fastcgi://unix:/var/run/php/php8.0-fpm.sock:", host: "xxx.com", referrer:
 "https://xxx.com/wp-admin/update-core.php?action=do-theme-upgrade"
 2020/12/27 11:46:24 [error] 1065#1065: *2352 FastCGI sent in stderr: "PHP
 message: PHP Fatal error:  Uncaught ValueError: fread(): Argument #2
 ($length) must be greater than 0 in /wp-admin/includes/class-
 pclzip.php:4212
 Stack trace:
 #0 /wp-admin/includes/class-pclzip.php(4212): fread(Resource id #109, 0)
 #1 /wp-admin/includes/class-pclzip.php(3518):
 PclZip->privExtractFileAsString(Array, '', Array)
 #2 /wp-admin/includes/class-pclzip.php(811):
 PclZip->privExtractByRule(Array, './', '', false, Array)
 #3 /wp-admin/includes/file.php(1639): PclZip->extract(77006)
 #4 /wp-admin/includes/file.php(1476): _unzip_file_pclzip('/tmp/bb-co...',
 '/usr/share/ngin...', Array)
 #5 /wp-admin/includes/class-wp-upgrader.php(328): unzip_file('/tmp/bb-
 co...', '/usr/share/ngin...')
 #6 /wp-admin/includes/class-wp-upgrader.php(779):
 WP_Upgrader->unpack_package('/tmp/bb-co" while reading upstream, , server:
 xxx.com, request: "GET /wp-admin/update.php?action=update-selected&plugins
 =bb-companion%2Fblocksy-companion.php&_wpnonce=7568c7759c HTTP/2.0",
 upstream: "fastcgi://unix:/var/run/php/php8.0-fpm.sock:", host: "xxx.com",
 referrer: "https://xxx.com/wp-admin/update-core.php?action=do-plugin-
 upgrade"

 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/52179>
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