diff options
author | Amar Tumballi <amarts@redhat.com> | 2018-12-19 09:45:42 +0530 |
---|---|---|
committer | Amar Tumballi <amarts@redhat.com> | 2018-12-20 06:26:37 +0000 |
commit | e1f92176a8d372e99386c0f007d6a38c0a54ca5b (patch) | |
tree | 4a84a104088b4e6d17a2d291230335abcdb23835 /libglusterfs | |
parent | 8cde14a537f0112400744d518ed196eb8fa232f2 (diff) |
all: handle USE_AFTER_FREE warnings
* we shouldn't be using 'local' after DHT_STACK_UNWIND() as it frees
the content of local. Add a 'goto out' or similar logic to handle
the situation.
* fix possible overlook of unref(dict), instead of unref(xdata).
* make coverity happy by re-ordering unref in meta-defaults.
* gfid-access: re-order dictionary allocation so we don't have to
do a extra unref.
* other obvious errors reported.
updates: bz#789278
Change-Id: If05961ee946b0c4868df19861d7e4a927a2a2489
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Diffstat (limited to 'libglusterfs')
-rw-r--r-- | libglusterfs/src/common-utils.c | 10 | ||||
-rw-r--r-- | libglusterfs/src/rbthash.c | 1 |
2 files changed, 8 insertions, 3 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c index 985e7580050..b6e4fbecf8a 100644 --- a/libglusterfs/src/common-utils.c +++ b/libglusterfs/src/common-utils.c @@ -3568,17 +3568,21 @@ gf_is_local_addr(char *hostname) } for (res = result; res != NULL; res = res->ai_next) { - gf_msg_debug(this->name, 0, "%s ", get_ip_from_addrinfo(res, &ip)); + get_ip_from_addrinfo(res, &ip); + gf_msg_debug(this->name, 0, "%s ", ip); if (ip) { - found = gf_is_loopback_localhost(res->ai_addr, hostname) || - gf_interface_search(ip); + found = (gf_is_loopback_localhost(res->ai_addr, hostname) || + gf_interface_search(ip)); } if (found) { GF_FREE(ip); goto out; } GF_FREE(ip); + /* the above free will not set ip to NULL, and hence, there is + double free possible as the loop continues. set ip to NULL. */ + ip = NULL; } out: diff --git a/libglusterfs/src/rbthash.c b/libglusterfs/src/rbthash.c index f5cd6a3d88c..1bdd45f9fae 100644 --- a/libglusterfs/src/rbthash.c +++ b/libglusterfs/src/rbthash.c @@ -286,6 +286,7 @@ rbthash_insert(rbthash_table_t *tbl, void *data, void *key, int keylen) gf_msg(GF_RBTHASH, GF_LOG_ERROR, 0, LG_MSG_RBTHASH_INSERT_FAILED, "Failed to insert entry"); rbthash_deinit_entry(tbl, entry); + goto err; } LOCK(&tbl->tablelock); |