diff options
| -rw-r--r-- | ext/posix/posix.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ext/posix/posix.c b/ext/posix/posix.c index 0c37784264..35910e0f28 100644 --- a/ext/posix/posix.c +++ b/ext/posix/posix.c @@ -887,6 +887,10 @@ PHP_FUNCTION(posix_getgrgid) #if defined(ZTS) && defined(HAVE_GETGRGID_R) && defined(_SC_GETGR_R_SIZE_MAX) grbuflen = sysconf(_SC_GETGR_R_SIZE_MAX); + if (grbuflen < 1) { + RETURN_FALSE; + } + grbuf = emalloc(grbuflen); ret = getgrgid_r(gid, &_g, grbuf, grbuflen, &retgrptr); |