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Bug #80086 Memory leak in mailparse_msg_create/mailparse_msg_free
Submitted: 2020-09-10 22:00 UTC Modified: 2020-09-14 15:35 UTC
From: zsogolow at zixcorp dot com Assigned: cmb (profile)
Status: Duplicate Package: mailparse (PECL)
PHP Version: 7.3.22 OS: Linux
Private report: No CVE-ID: None
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From: zsogolow at zixcorp dot com
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 [2020-09-10 22:00 UTC] zsogolow at zixcorp dot com
When looping over and parsing multiple emails, there appears to be a memory leak. Memory is not being freed when calling mailparse_msg_free after parsing. In the test script you will notice the memory usage steadily climbing.

Test script:
$i = 0;
while ($i++ < 100000) {
    $mail = mailparse_msg_create();
    mailparse_msg_parse($mail, file_get_contents("download.eml"));
    $struct = mailparse_msg_get_structure($mail);

    echo "Memory Consumption is ";
    echo round(memory_get_usage() / 1048576, 2) . '' . ' MB' . PHP_EOL;

Expected result:
Memory to be freed

Actual result:
Memory usage continues to climb


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 [2020-09-14 15:35 UTC]
-Status: Open +Status: Duplicate -Assigned To: +Assigned To: cmb
 [2020-09-14 15:35 UTC]
Duplicate of bug #74215.
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