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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b264bcca6sm6581895b3a.78.2024.09.30.11.46.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 11:46:17 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Ivan Malov , Andrew Rybchenko , Andy Moreton Subject: [PATCH v4 09/17] net/sfc: fix use-after-free warning messages Date: Mon, 30 Sep 2024 11:44:03 -0700 Message-ID: <20240930184600.7092-10-stephen@networkplumber.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240930184600.7092-1-stephen@networkplumber.org> References: <20240927204742.546164-1-stephen@networkplumber.org> <20240930184600.7092-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org If compiler detection of use-after-free is enabled then this drivers debug messages will cause warnings. Change to move debug message before the object is freed. Bugzilla ID: 1551 Fixes: 55c1238246d5 ("net/sfc: add more debug messages to transfer flows") Signed-off-by: Stephen Hemminger Reviewed-by: Ivan Malov Acked-by: Andrew Rybchenko --- drivers/net/sfc/sfc_flow_rss.c | 4 ++-- drivers/net/sfc/sfc_mae.c | 23 +++++++++-------------- 2 files changed, 11 insertions(+), 16 deletions(-) diff --git a/drivers/net/sfc/sfc_flow_rss.c b/drivers/net/sfc/sfc_flow_rss.c index e28c943335..8e2749833b 100644 --- a/drivers/net/sfc/sfc_flow_rss.c +++ b/drivers/net/sfc/sfc_flow_rss.c @@ -303,9 +303,9 @@ sfc_flow_rss_ctx_del(struct sfc_adapter *sa, struct sfc_flow_rss_ctx *ctx) TAILQ_REMOVE(&flow_rss->ctx_list, ctx, entries); rte_free(ctx->qid_offsets); - rte_free(ctx); - sfc_dbg(sa, "flow-rss: deleted ctx=%p", ctx); + + rte_free(ctx); } static int diff --git a/drivers/net/sfc/sfc_mae.c b/drivers/net/sfc/sfc_mae.c index 60ff6d2181..8f74f10390 100644 --- a/drivers/net/sfc/sfc_mae.c +++ b/drivers/net/sfc/sfc_mae.c @@ -400,9 +400,8 @@ sfc_mae_outer_rule_del(struct sfc_adapter *sa, efx_mae_match_spec_fini(sa->nic, rule->match_spec); TAILQ_REMOVE(&mae->outer_rules, rule, entries); - rte_free(rule); - sfc_dbg(sa, "deleted outer_rule=%p", rule); + rte_free(rule); } static int @@ -585,9 +584,8 @@ sfc_mae_mac_addr_del(struct sfc_adapter *sa, struct sfc_mae_mac_addr *mac_addr) } TAILQ_REMOVE(&mae->mac_addrs, mac_addr, entries); - rte_free(mac_addr); - sfc_dbg(sa, "deleted mac_addr=%p", mac_addr); + rte_free(mac_addr); } enum sfc_mae_mac_addr_type { @@ -785,10 +783,10 @@ sfc_mae_encap_header_del(struct sfc_adapter *sa, } TAILQ_REMOVE(&mae->encap_headers, encap_header, entries); + sfc_dbg(sa, "deleted encap_header=%p", encap_header); + rte_free(encap_header->buf); rte_free(encap_header); - - sfc_dbg(sa, "deleted encap_header=%p", encap_header); } static int @@ -983,9 +981,8 @@ sfc_mae_counter_del(struct sfc_adapter *sa, struct sfc_mae_counter *counter) } TAILQ_REMOVE(&mae->counters, counter, entries); - rte_free(counter); - sfc_dbg(sa, "deleted counter=%p", counter); + rte_free(counter); } static int @@ -1165,9 +1162,8 @@ sfc_mae_action_set_del(struct sfc_adapter *sa, sfc_mae_mac_addr_del(sa, action_set->src_mac_addr); sfc_mae_counter_del(sa, action_set->counter); TAILQ_REMOVE(&mae->action_sets, action_set, entries); - rte_free(action_set); - sfc_dbg(sa, "deleted action_set=%p", action_set); + rte_free(action_set); } static int @@ -1401,10 +1397,10 @@ sfc_mae_action_set_list_del(struct sfc_adapter *sa, sfc_mae_action_set_del(sa, action_set_list->action_sets[i]); TAILQ_REMOVE(&mae->action_set_lists, action_set_list, entries); + sfc_dbg(sa, "deleted action_set_list=%p", action_set_list); + rte_free(action_set_list->action_sets); rte_free(action_set_list); - - sfc_dbg(sa, "deleted action_set_list=%p", action_set_list); } static int @@ -1667,9 +1663,8 @@ sfc_mae_action_rule_del(struct sfc_adapter *sa, sfc_mae_outer_rule_del(sa, rule->outer_rule); TAILQ_REMOVE(&mae->action_rules, rule, entries); - rte_free(rule); - sfc_dbg(sa, "deleted action_rule=%p", rule); + rte_free(rule); } static int -- 2.45.2