Date: Thu, 23 Oct 2014 18:23:51 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273552 - head/sys/kern Message-ID: <201410231823.s9NINpXD082633@svn.freebsd.org>
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Author: delphij Date: Thu Oct 23 18:23:50 2014 New Revision: 273552 URL: https://svnweb.freebsd.org/changeset/base/273552 Log: Test if 'env' is NULL before doing memset() and strlen(), the caller may pass NULL to freeenv(). Modified: head/sys/kern/kern_environment.c Modified: head/sys/kern/kern_environment.c ============================================================================== --- head/sys/kern/kern_environment.c Thu Oct 23 18:03:27 2014 (r273551) +++ head/sys/kern/kern_environment.c Thu Oct 23 18:23:50 2014 (r273552) @@ -262,7 +262,7 @@ void freeenv(char *env) { - if (dynamic_kenv) { + if (dynamic_kenv && env != NULL) { memset(env, 0, strlen(env)); free(env, M_KENV); }
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