e6520ef815
Fix sendmail improper close-on-exec flag handling. [SA-14:11] Fix ktrace memory disclosure. [SA-14:12] Fix incorrect error handling in PAM policy parser. [SA-14:13] Fix triple-fault when executing from a threaded process. [EN-14:06]
126 lines
3.4 KiB
Diff
126 lines
3.4 KiB
Diff
Index: contrib/openpam/lib/libpam/openpam_configure.c
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===================================================================
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--- contrib/openpam/lib/libpam/openpam_configure.c.orig
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+++ contrib/openpam/lib/libpam/openpam_configure.c
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@@ -1,6 +1,6 @@
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/*-
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* Copyright (c) 2001-2003 Networks Associates Technology, Inc.
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- * Copyright (c) 2004-2012 Dag-Erling Smørgrav
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+ * Copyright (c) 2004-2014 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by ThinkSec AS and
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@@ -193,6 +193,7 @@
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openpam_log(PAM_LOG_ERROR,
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"%s(%d): missing or invalid facility",
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filename, lineno);
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+ errno = EINVAL;
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goto fail;
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}
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if (facility != fclt && facility != PAM_FACILITY_ANY) {
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@@ -208,6 +209,7 @@
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openpam_log(PAM_LOG_ERROR,
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"%s(%d): missing or invalid service name",
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filename, lineno);
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+ errno = EINVAL;
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goto fail;
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}
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if (wordv[i] != NULL) {
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@@ -214,12 +216,21 @@
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openpam_log(PAM_LOG_ERROR,
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"%s(%d): garbage at end of line",
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filename, lineno);
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+ errno = EINVAL;
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goto fail;
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}
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ret = openpam_load_chain(pamh, servicename, fclt);
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FREEV(wordc, wordv);
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- if (ret < 0)
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+ if (ret < 0) {
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+ /*
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+ * Bogus errno, but this ensures that the
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+ * outer loop does not just ignore the
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+ * error and keep searching.
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+ */
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+ if (errno == ENOENT)
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+ errno = EINVAL;
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goto fail;
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+ }
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continue;
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}
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@@ -229,6 +240,7 @@
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openpam_log(PAM_LOG_ERROR,
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"%s(%d): missing or invalid control flag",
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filename, lineno);
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+ errno = EINVAL;
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goto fail;
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}
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@@ -238,6 +250,7 @@
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openpam_log(PAM_LOG_ERROR,
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"%s(%d): missing or invalid module name",
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filename, lineno);
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+ errno = EINVAL;
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goto fail;
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}
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@@ -247,8 +260,11 @@
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this->flag = ctlf;
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/* load module */
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- if ((this->module = openpam_load_module(modulename)) == NULL)
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+ if ((this->module = openpam_load_module(modulename)) == NULL) {
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+ if (errno == ENOENT)
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+ errno = ENOEXEC;
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goto fail;
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+ }
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/*
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* The remaining items in wordv are the module's
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@@ -281,7 +297,11 @@
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* The loop ended because openpam_readword() returned NULL, which
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* can happen for four different reasons: an I/O error (ferror(f)
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* is true), a memory allocation failure (ferror(f) is false,
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- * errno is non-zero)
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+ * feof(f) is false, errno is non-zero), the file ended with an
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+ * unterminated quote or backslash escape (ferror(f) is false,
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+ * feof(f) is true, errno is non-zero), or the end of the file was
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+ * reached without error (ferror(f) is false, feof(f) is true,
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+ * errno is zero).
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*/
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if (ferror(f) || errno != 0)
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goto syserr;
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@@ -402,6 +422,9 @@
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}
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ret = openpam_load_file(pamh, service, facility,
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filename, style);
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+ /* success */
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+ if (ret > 0)
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+ RETURNN(ret);
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/* the file exists, but an error occurred */
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if (ret == -1 && errno != ENOENT)
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RETURNN(ret);
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@@ -411,7 +434,8 @@
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}
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/* no hit */
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- RETURNN(0);
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+ errno = ENOENT;
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+ RETURNN(-1);
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}
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/*
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@@ -432,8 +456,10 @@
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openpam_log(PAM_LOG_ERROR, "invalid service name");
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RETURNC(PAM_SYSTEM_ERR);
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}
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- if (openpam_load_chain(pamh, service, PAM_FACILITY_ANY) < 0)
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- goto load_err;
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+ if (openpam_load_chain(pamh, service, PAM_FACILITY_ANY) < 0) {
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+ if (errno != ENOENT)
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+ goto load_err;
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+ }
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for (fclt = 0; fclt < PAM_NUM_FACILITIES; ++fclt) {
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if (pamh->chains[fclt] != NULL)
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continue;
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