Date: Mon, 6 Mar 2017 15:45:46 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r314780 - head/lib/libpam/modules/pam_exec Message-ID: <201703061545.v26FjkNI027057@repo.freebsd.org>
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Author: pfg Date: Mon Mar 6 15:45:46 2017 New Revision: 314780 URL: https://svnweb.freebsd.org/changeset/base/314780 Log: libpam: extra bounds checking through reallocarray(3). Reviewed by: des MFC after: 1 week Modified: head/lib/libpam/modules/pam_exec/pam_exec.c Modified: head/lib/libpam/modules/pam_exec/pam_exec.c ============================================================================== --- head/lib/libpam/modules/pam_exec/pam_exec.c Mon Mar 6 15:42:03 2017 (r314779) +++ head/lib/libpam/modules/pam_exec/pam_exec.c Mon Mar 6 15:45:46 2017 (r314780) @@ -138,7 +138,7 @@ _pam_exec(pam_handle_t *pamh __unused, nitems = sizeof(env_items) / sizeof(*env_items); /* Count PAM return values put in the environment. */ nitems_rv = options->return_prog_exit_status ? PAM_RV_COUNT : 0; - tmp = realloc(envlist, (envlen + nitems + 1 + nitems_rv + 1) * + tmp = reallocarray(envlist, envlen + nitems + 1 + nitems_rv + 1, sizeof(*envlist)); if (tmp == NULL) { openpam_free_envlist(envlist);
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