Bug #78620 [Opn->Ver]: Out of memory error

Edit report at https://bugs.php.net/bug.php?id=78620&edit=1 ID: 78620 Updated by: cmb@php.net Reported by: v-altruo at microsoft dot com Summary: Out of memory error -Status: Open +Status: Verified Type: Bug -Package: Testing related +Package: Scripting Engine problem Operating System: Windows Server 2012 R2 -PHP Version: 7.3.10 +PHP Version: 7.2.23 Block user comment: N Private report: N New Comment: Oh, indeed! The problem is that ZEND_MM_ALIGNED_SIZE_EX evaluates to 0[1], since (size + alignment -1) overflows (in this case size == 4294901777 && alignment == 2097152), and we don't catch that. [1] <https://github.com/php/php-src/blob/php-7.2.23/Zend/zend_alloc.c#L1458> Previous Comments: ------------------------------------------------------------------------ [2019-10-01 17:21:15] v-altruo at microsoft dot com Description: ------------ Test fails with x86 version for both nts/ts builds regardless of opcache on/off. Test also fails for 7.2.23. Failed test file location: ext\standard\tests\strings\wordwrap_memory_limit.phpt Expected result: ---------------- Fatal error: Allowed memory size of 134217728 bytes exhausted%s(tried to allocate %d bytes) in %s on line %d Actual result: -------------- VirtualAlloc() failed: [0x00000057] The parameter is incorrect. VirtualAlloc() failed: [0x00000057] The parameter is incorrect. Fatal error: Out of memory (allocated 2097152) (tried to allocate 4294901777 bytes) in C:\..\ext\standard\tests\strings\wordwrap_memory_limit.php on line 5 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78620&edit=1