Bug #53574 [NEW]: Integer overflow in SdnToJulian

From: Operating system: Linux PHP version: 5.3.4 Package: *Calendar problems Bug Type: Bug Bug description:Integer overflow in SdnToJulian Description: ------------ *cut* void SdnToJulian( long int sdn, int *pYear, int *pMonth, int *pDay) { int year; int month; int day; long int temp; int dayOfYear; if (sdn <= 0) { *pYear = 0; *pMonth = 0; *pDay = 0; return; } temp = (sdn + JULIAN_SDN_OFFSET) * 4 - 1; *cut* temp could here be less then 0 due to integer overflow (when sdn is large enough). Test script: --------------- <?php for(;;) { $x = rand(0, 2147483640); echo "$x\n"; $dummy = cal_from_jd($x,0); $dummy = cal_from_jd($x,1); } ?> Expected result: ---------------- Sigsegv: $ php core1.php 758413092 1698116908 42935006 988939165 101976420 1332880082 882858043 Naruszenie ochrony pamięci (SIGSEGV) -- Edit bug report at http://bugs.php.net/bug.php?id=53574&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53574&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53574&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53574&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53574&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53574&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53574&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53574&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53574&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53574&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53574&r=support Expected behavior: http://bugs.php.net/fix.php?id=53574&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53574&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53574&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53574&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53574&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53574&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53574&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53574&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53574&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53574&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53574&r=mysqlcfg