From: Petr Lautrbach <plautrba@redhat.com>
To: selinux@vger.kernel.org
Cc: Petr Lautrbach <plautrba@redhat.com>
Subject: [PATCH 1/3] libsepol: Fix RESOURCE_LEAK defects reported by coverity scan
Date: Thu, 31 Jan 2019 14:22:24 +0100 [thread overview]
Message-ID: <20190131132226.19030-1-plautrba@redhat.com> (raw)
Signed-off-by: Petr Lautrbach <plautrba@redhat.com>
---
libsepol/cil/src/cil_binary.c | 12 ++++++++++++
libsepol/cil/src/cil_resolve_ast.c | 10 ++++++++++
libsepol/cil/src/cil_symtab.c | 1 +
libsepol/src/expand.c | 3 +++
libsepol/src/kernel_to_cil.c | 2 ++
libsepol/src/kernel_to_conf.c | 2 ++
6 files changed, 30 insertions(+)
diff --git a/libsepol/cil/src/cil_binary.c b/libsepol/cil/src/cil_binary.c
index 0cc6eeb1..a645c95d 100644
--- a/libsepol/cil/src/cil_binary.c
+++ b/libsepol/cil/src/cil_binary.c
@@ -912,6 +912,8 @@ int cil_sensalias_to_policydb(policydb_t *pdb, struct cil_alias *cil_alias)
key = cil_strdup(cil_alias->datum.fqn);
rc = symtab_insert(pdb, SYM_LEVELS, key, sepol_alias, SCOPE_DECL, 0, NULL);
if (rc != SEPOL_OK) {
+ if (rc == 1)
+ free(sepol_alias);
goto exit;
}
@@ -1763,11 +1765,13 @@ int __cil_avrulex_ioctl_to_hashtable(hashtab_t h, uint16_t kind, uint32_t src, u
hashtab_xperms = cil_malloc(sizeof(*hashtab_xperms));
rc = ebitmap_cpy(hashtab_xperms, xperms);
if (rc != SEPOL_OK) {
+ free(hashtab_xperms);
free(avtab_key);
goto exit;
}
rc = hashtab_insert(h, (hashtab_key_t)avtab_key, hashtab_xperms);
if (rc != SEPOL_OK) {
+ free(hashtab_xperms);
free(avtab_key);
goto exit;
}
@@ -2157,6 +2161,7 @@ static int __cil_cond_expr_to_sepol_expr_helper(policydb_t *pdb, struct cil_list
op->expr_type = COND_NEQ;
break;
default:
+ free(op);
goto exit;
}
@@ -2283,6 +2288,7 @@ int cil_booleanif_to_policydb(policydb_t *pdb, const struct cil_db *db, struct c
cond_expr_destroy(tmp_cond->expr);
free(tmp_cond);
+ tmp_cond = NULL;
for (cb_node = node->cl_head; cb_node != NULL; cb_node = cb_node->next) {
if (cb_node->flavor == CIL_CONDBLOCK) {
@@ -2327,6 +2333,11 @@ int cil_booleanif_to_policydb(policydb_t *pdb, const struct cil_db *db, struct c
return SEPOL_OK;
exit:
+ if (tmp_cond) {
+ if (tmp_cond->expr)
+ cond_expr_destroy(tmp_cond->expr);
+ free(tmp_cond);
+ }
return rc;
}
@@ -4797,6 +4808,7 @@ static struct cil_list *cil_classperms_from_sepol(policydb_t *pdb, uint16_t clas
return cp_list;
exit:
+ free(cp);
cil_log(CIL_ERR,"Failed to create CIL class-permissions from sepol values\n");
return NULL;
}
diff --git a/libsepol/cil/src/cil_resolve_ast.c b/libsepol/cil/src/cil_resolve_ast.c
index fb9d9174..91187ed7 100644
--- a/libsepol/cil/src/cil_resolve_ast.c
+++ b/libsepol/cil/src/cil_resolve_ast.c
@@ -1522,6 +1522,7 @@ int cil_resolve_sidorder(struct cil_tree_node *current, void *extra_args)
rc = cil_resolve_name(current, (char *)curr->data, CIL_SYM_SIDS, extra_args, &datum);
if (rc != SEPOL_OK) {
cil_log(CIL_ERR, "Failed to resolve sid %s in sidorder\n", (char *)curr->data);
+ free(new);
goto exit;
}
cil_list_append(new, CIL_SID, datum);
@@ -1591,6 +1592,8 @@ int cil_resolve_catorder(struct cil_tree_node *current, void *extra_args)
return SEPOL_OK;
exit:
+ if (new)
+ free(new);
return rc;
}
@@ -1624,6 +1627,7 @@ int cil_resolve_sensitivityorder(struct cil_tree_node *current, void *extra_args
return SEPOL_OK;
exit:
+ free(new);
return rc;
}
@@ -2853,6 +2857,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
rc = cil_fill_cats(pc, &catset->cats);
if (rc != SEPOL_OK) {
cil_destroy_catset(catset);
+ cil_destroy_args(new_arg);
goto exit;
}
cil_tree_node_init(&cat_node);
@@ -2877,6 +2882,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
if (rc != SEPOL_OK) {
cil_log(CIL_ERR, "Failed to create anonymous level, rc: %d\n", rc);
cil_destroy_level(level);
+ cil_destroy_args(new_arg);
goto exit;
}
cil_tree_node_init(&lvl_node);
@@ -2901,6 +2907,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
if (rc != SEPOL_OK) {
cil_log(CIL_ERR, "Failed to create anonymous levelrange, rc: %d\n", rc);
cil_destroy_levelrange(range);
+ cil_destroy_args(new_arg);
goto exit;
}
cil_tree_node_init(&range_node);
@@ -2925,6 +2932,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
if (rc != SEPOL_OK) {
cil_log(CIL_ERR, "Failed to create anonymous ip address, rc: %d\n", rc);
cil_destroy_ipaddr(ipaddr);
+ cil_destroy_args(new_arg);
goto exit;
}
cil_tree_node_init(&addr_node);
@@ -2955,6 +2963,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
if (rc != SEPOL_OK) {
cil_log(CIL_ERR, "Failed to create anonymous classpermission\n");
cil_destroy_classpermission(cp);
+ cil_destroy_args(new_arg);
goto exit;
}
cil_tree_node_init(&cp_node);
@@ -2970,6 +2979,7 @@ int cil_resolve_call1(struct cil_tree_node *current, void *extra_args)
default:
cil_log(CIL_ERR, "Unexpected flavor: %d\n",
(((struct cil_param*)item->data)->flavor));
+ cil_destroy_args(new_arg);
rc = SEPOL_ERR;
goto exit;
}
diff --git a/libsepol/cil/src/cil_symtab.c b/libsepol/cil/src/cil_symtab.c
index 3769979b..2970b863 100644
--- a/libsepol/cil/src/cil_symtab.c
+++ b/libsepol/cil/src/cil_symtab.c
@@ -185,6 +185,7 @@ int cil_complex_symtab_insert(struct cil_complex_symtab *symtab,
ckey->key2 == curr->ckey->key2 &&
ckey->key3 == curr->ckey->key3 &&
ckey->key4 == curr->ckey->key4) {
+ free(node);
return SEPOL_EEXIST;
}
diff --git a/libsepol/src/expand.c b/libsepol/src/expand.c
index 6f1b235e..125a6809 100644
--- a/libsepol/src/expand.c
+++ b/libsepol/src/expand.c
@@ -1451,6 +1451,7 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
new_trans->name = strdup(cur_rule->name);
if (!new_trans->name) {
ERR(state->handle, "Out of memory!");
+ free(new_trans);
return -1;
}
new_trans->stype = i + 1;
@@ -1460,6 +1461,8 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
otype = calloc(1, sizeof(*otype));
if (!otype) {
ERR(state->handle, "Out of memory!");
+ free(new_trans->name);
+ free(new_trans);
return -1;
}
otype->otype = mapped_otype;
diff --git a/libsepol/src/kernel_to_cil.c b/libsepol/src/kernel_to_cil.c
index 63e4d489..ec82f597 100644
--- a/libsepol/src/kernel_to_cil.c
+++ b/libsepol/src/kernel_to_cil.c
@@ -2031,6 +2031,8 @@ static int write_cond_av_list_to_cil(FILE *out, struct policydb *pdb, cond_av_li
return 0;
exit:
+ strs_free_all(strs);
+ strs_destroy(&strs);
return rc;
}
diff --git a/libsepol/src/kernel_to_conf.c b/libsepol/src/kernel_to_conf.c
index 215d940c..afadca6b 100644
--- a/libsepol/src/kernel_to_conf.c
+++ b/libsepol/src/kernel_to_conf.c
@@ -1999,6 +1999,8 @@ static int write_cond_av_list_to_conf(FILE *out, struct policydb *pdb, cond_av_l
return 0;
exit:
+ strs_free_all(strs);
+ strs_destroy(&strs);
return rc;
}
--
2.20.1
next reply other threads:[~2019-01-31 13:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-31 13:22 Petr Lautrbach [this message]
2019-01-31 13:22 ` [PATCH 2/3] libselinux: Fix RESOURCE_LEAK defects reported by coverity scan Petr Lautrbach
2019-01-31 21:47 ` Nicolas Iooss
2019-02-06 20:33 ` [PATCH v2] " Petr Lautrbach
2019-02-06 22:40 ` Nicolas Iooss
2019-02-10 18:32 ` Nicolas Iooss
2019-01-31 13:22 ` [PATCH 3/3] libsemanage: Fix USE_AFTER_FREE " Petr Lautrbach
2019-01-31 21:57 ` Nicolas Iooss
2019-02-01 12:45 ` Petr Lautrbach
2019-01-31 21:17 ` [PATCH 1/3] libsepol: Fix RESOURCE_LEAK " Nicolas Iooss
2019-02-01 18:19 ` [Non-DoD Source] " jwcart2
2019-01-31 21:33 ` Nicolas Iooss
2019-02-01 19:32 ` [Non-DoD Source] " jwcart2
2019-02-01 20:07 ` [Non-DoD Source] " jwcart2
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190131132226.19030-1-plautrba@redhat.com \
--to=plautrba@redhat.com \
--cc=selinux@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).