From c827682e4df44ec6aaae3780c325568fb43053ff Mon Sep 17 00:00:00 2001 From: Atin Mukherjee Date: Wed, 24 Apr 2019 22:02:51 +0530 Subject: glusterd: coverity fixes Addresses the following: * CID 1124776: Resource leaks (RESOURCE_LEAK) - Variable "aa" going out of scope leaks the storage it points to in glusterd-volgen.c * Bunch of CHECKED_RETURN defects in the callers of synctask_barrier_init * CID 1400755: Error handling issues (CHECKED_RETURN) - Calling "gf_is_service_running" without checking return value in xlators/mgmt/glusterd/src/glusterd-shd-svc.c: 671 in glusterd_shdsvc_stop() * CID 1400745: Memory - illegal accesses (USE_AFTER_FREE) - Dereferencing freed pointer "volinfo" in /xlators/mgmt/glusterd/src/glusterd-shd-svc.c: 460 in glusterd_shdsvc_start() * CID 1400742: Program hangs (LOCK) - adding annotation to fix this false positive Updates: bz#789278 Change-Id: I02f16e7eeb8c5cf72f7d0b29d00df4f03b3718b3 Signed-off-by: Atin Mukherjee --- xlators/mgmt/glusterd/src/glusterd-handler.c | 6 ++++++ xlators/mgmt/glusterd/src/glusterd-mgmt.c | 24 +++++++++++++++++++----- xlators/mgmt/glusterd/src/glusterd-shd-svc.c | 6 ++++-- xlators/mgmt/glusterd/src/glusterd-syncop.c | 22 ++++++++++++++++++---- xlators/mgmt/glusterd/src/glusterd-volgen.c | 5 +++-- 5 files changed, 50 insertions(+), 13 deletions(-) (limited to 'xlators') diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c index 678425a19a8..4b069574bbd 100644 --- a/xlators/mgmt/glusterd/src/glusterd-handler.c +++ b/xlators/mgmt/glusterd/src/glusterd-handler.c @@ -3288,6 +3288,12 @@ glusterd_friend_remove(uuid_t uuid, char *hostname) ret = glusterd_peerinfo_cleanup(peerinfo); out: gf_msg_debug(THIS->name, 0, "returning %d", ret); + /* We don't need to do a mutex unlock of peerinfo->delete_lock as the same + * will be anyway destroyed within glusterd_peerinfo_cleanup, coverity + * though cries about it + */ + /* coverity[LOCK] */ + return ret; } diff --git a/xlators/mgmt/glusterd/src/glusterd-mgmt.c b/xlators/mgmt/glusterd/src/glusterd-mgmt.c index 61ad66ee6ec..f5f44f6b2a9 100644 --- a/xlators/mgmt/glusterd/src/glusterd-mgmt.c +++ b/xlators/mgmt/glusterd/src/glusterd-mgmt.c @@ -757,7 +757,10 @@ glusterd_mgmt_v3_initiate_lockdown(glusterd_op_t op, dict_t *dict, /* Sending mgmt_v3 lock req to other nodes in the cluster */ gd_syncargs_init(&args, NULL); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; @@ -1107,7 +1110,10 @@ glusterd_mgmt_v3_pre_validate(glusterd_op_t op, dict_t *req_dict, /* Sending Pre Validation req to other nodes in the cluster */ gd_syncargs_init(&args, req_dict); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; @@ -1457,7 +1463,10 @@ glusterd_mgmt_v3_brick_op(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict, /* Sending brick op req to other nodes in the cluster */ gd_syncargs_init(&args, op_ctx); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; @@ -1721,7 +1730,9 @@ glusterd_mgmt_v3_commit(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict, /* Sending commit req to other nodes in the cluster */ gd_syncargs_init(&args, op_ctx); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; peer_cnt = 0; RCU_READ_LOCK; @@ -1962,7 +1973,10 @@ glusterd_mgmt_v3_post_validate(glusterd_op_t op, int32_t op_ret, dict_t *dict, /* Sending Post Validation req to other nodes in the cluster */ gd_syncargs_init(&args, req_dict); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; diff --git a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c index a9eab42a46c..3e257e63c18 100644 --- a/xlators/mgmt/glusterd/src/glusterd-shd-svc.c +++ b/xlators/mgmt/glusterd/src/glusterd-shd-svc.c @@ -456,11 +456,11 @@ glusterd_shdsvc_start(glusterd_svc_t *svc, int flags) /* Unref will happen from glusterd_svc_attach_cbk */ ret = glusterd_attach_svc(svc, volinfo, flags); if (ret) { - glusterd_volinfo_unref(volinfo); gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLINFO_GET_FAIL, "Failed to attach shd svc(volume=%s) to pid=%d. Starting" "a new process", volinfo->volname, glusterd_proc_get_pid(&svc->proc)); + glusterd_volinfo_unref(volinfo); ret = glusterd_recover_shd_attach_failure(volinfo, svc, flags); } goto out; @@ -668,7 +668,9 @@ glusterd_shdsvc_stop(glusterd_svc_t *svc, int sig) glusterd_volinfo_ref(volinfo); pthread_mutex_lock(&conf->attach_lock); { - gf_is_service_running(svc->proc.pidfile, &pid); + if (!gf_is_service_running(svc->proc.pidfile, &pid)) { + gf_msg_debug(THIS->name, 0, "shd isn't running"); + } cds_list_del_init(&svc->mux_svc); empty = cds_list_empty(&svc_proc->svcs); } diff --git a/xlators/mgmt/glusterd/src/glusterd-syncop.c b/xlators/mgmt/glusterd/src/glusterd-syncop.c index 9bab2cfd54c..60a25ad974a 100644 --- a/xlators/mgmt/glusterd/src/glusterd-syncop.c +++ b/xlators/mgmt/glusterd/src/glusterd-syncop.c @@ -1191,7 +1191,12 @@ gd_lock_op_phase(glusterd_conf_t *conf, glusterd_op_t op, dict_t *op_ctx, struct syncargs args = {0}; this = THIS; - synctask_barrier_init((&args)); + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; @@ -1321,7 +1326,10 @@ stage_done: } gd_syncargs_init(&args, aggr_dict); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; RCU_READ_LOCK; @@ -1449,7 +1457,10 @@ commit_done: } gd_syncargs_init(&args, op_ctx); - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; origin_glusterd = is_origin_glusterd(req_dict); @@ -1541,7 +1552,10 @@ gd_unlock_op_phase(glusterd_conf_t *conf, glusterd_op_t op, int *op_ret, goto out; } - synctask_barrier_init((&args)); + ret = synctask_barrier_init((&args)); + if (ret) + goto out; + peer_cnt = 0; if (cluster_lock) { diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c index 493edb101b6..69298adc8cb 100644 --- a/xlators/mgmt/glusterd/src/glusterd-volgen.c +++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c @@ -4726,9 +4726,10 @@ nfs_option_handler(volgen_graph_t *graph, struct volopt_map_entry *vme, if (ret != -1) { ret = gf_canonicalize_path(vme->value); - if (ret) + if (ret) { + GF_FREE(aa); return -1; - + } ret = xlator_set_option(xl, aa, ret, vme->value); GF_FREE(aa); } -- cgit