#48346 [NEW]: gettimeofday raise SEGFAULT

From: adriano at guiadohardware dot net Operating system: AMD64 Gentoo Hardened, glibc 2.3 PHP version: 5.2.9 PHP Bug Type: Date/time related Bug description: gettimeofday raise SEGFAULT Description: ------------ Hi, On my server the second argument on gettimeofday raise SEGFAULT. I can't reproduce this error using another system lib version of another server. As manpage of gettimeofday said: "If tzp is not a null pointer, the behavior is unspecified. " (http://linux.die.net/man/3/gettimeofday). This old timezone is no longer used and must be kept outside of kernel. After the patch below this worked. --- php-5.2.9/ext/standard/microtime.c 2009-05-20 12:07:39.000000000 -0300 +++ php-5.2.9/ext/standard/microtime.c 2009-05-20 12:08:33.000000000 -0300 @@ -54,13 +54,12 @@ { zend_bool get_as_float = 0; struct timeval tp = {0}; - struct timezone tz = {0}; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &get_as_float) == FAILURE) { return; } - if (gettimeofday(&tp, &tz)) { + if (gettimeofday(&tp, NULL)) { RETURN_FALSE; } Reproduce code: --------------- crash.php <? print_r(gettimeofday()); ?> gettimeofday.c #include <sys/time.h> #include <time.h> #include <stdlib.h> #include <stdio.h> int main(void) { char buffer[30]; struct timeval tv = {0}; struct timezone tz = {0}; time_t curtime; gettimeofday(&tv, &tz); curtime=tv.tv_sec; strftime(buffer,30,"%m-%d-%Y %T.",localtime(&curtime)); printf("%s%ld\n",buffer,tv.tv_usec); return 0; } Expected result: ---------------- ~ # gcc -Wall -O0 gettimeofday.c -o gettimeofday ~ # ./gettimeofday Segmentation fault ~ # ./crash.php Segmentation fault -- Edit bug report at http://bugs.php.net/?id=48346&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48346&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48346&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48346&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48346&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48346&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48346&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48346&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48346&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48346&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48346&r=support Expected behavior: http://bugs.php.net/fix.php?id=48346&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48346&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48346&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48346&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48346&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48346&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48346&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48346&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48346&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48346&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48346&r=mysqlcfg