From: Jérémie Galarneau Date: Wed, 10 Feb 2021 19:33:11 +0000 (-0500) Subject: Fix: sessiond: client: leak of trigger object on invalid client message X-Git-Tag: v2.13.0-rc1~336 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=b5ef16855f9c69315d9530730200890dbbebad24;p=lttng-tools.git Fix: sessiond: client: leak of trigger object on invalid client message Coverity reports: 1445927 Resource leak The system resource will not be reclaimed and reused, reducing the future availability of the resource. In receive_lttng_trigger: Leak of memory or pointers to system resources (CWE-404) lttng_trigger_create_from_payload() can return a trigger (positive return value) that doesn't match the advertised trigger size. In that case, a trigger reference was still returned and must be released. Reported-by: Coverity Scan Signed-off-by: Jérémie Galarneau Change-Id: I5afac029ddcf32dd0a01064c9dc688ed9208f278 --- diff --git a/src/bin/lttng-sessiond/client.c b/src/bin/lttng-sessiond/client.c index c0086953a..00b5ec7e4 100644 --- a/src/bin/lttng-sessiond/client.c +++ b/src/bin/lttng-sessiond/client.c @@ -705,7 +705,7 @@ static enum lttng_error_code receive_lttng_trigger(struct command_ctx *cmd_ctx, ssize_t sock_recv_len; enum lttng_error_code ret_code; struct lttng_payload trigger_payload; - struct lttng_trigger *trigger; + struct lttng_trigger *trigger = NULL; lttng_payload_init(&trigger_payload); trigger_len = (size_t) cmd_ctx->lsm.u.trigger.length; @@ -755,6 +755,7 @@ static enum lttng_error_code receive_lttng_trigger(struct command_ctx *cmd_ctx, trigger_len) { ERR("Invalid trigger received as part of command payload"); ret_code = LTTNG_ERR_INVALID_TRIGGER; + lttng_trigger_put(trigger); goto end; } }