X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fchannel.c;h=ae53c672c6c2a5792ba981324f37097e7f596f6d;hp=d07e1d901fa3ba10170cb259411c105689a6a4a4;hb=95e047ff8e01767e2e18b892f7a1ba9bf28abcbe;hpb=321d0ee36e3c7f9d38647cb171f5760f4278c784

diff --git a/src/bin/lttng-sessiond/channel.c b/src/bin/lttng-sessiond/channel.c
index d07e1d901..ae53c672c 100644
--- a/src/bin/lttng-sessiond/channel.c
+++ b/src/bin/lttng-sessiond/channel.c
@@ -240,6 +240,11 @@ int channel_ust_create(struct ltt_ust_session *usess, int domain,
 		attr = defattr;
 	}
 
+	if (attr->attr.subbuf_size < DEFAULT_UST_CHANNEL_SUBBUF_SIZE) {
+		ret = LTTNG_ERR_INVALID;
+		goto error;
+	}
+
 	/*
 	 * Validate UST buffer size and number of buffers: must both be
 	 * power of 2 and nonzero. We validate right here for UST,