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Init the kconsumerd error socket
[lttng-tools.git]
/
liblttngctl
/
lttngctl.c
diff --git
a/liblttngctl/lttngctl.c
b/liblttngctl/lttngctl.c
index 42f3ad2ae9950729c3c53922c759d53173d59ee5..b64ace2e6d80de0ce085791f698604e53f8eb523 100644
(file)
--- a/
liblttngctl/lttngctl.c
+++ b/
liblttngctl/lttngctl.c
@@
-21,18
+21,17
@@
*/
#define _GNU_SOURCE
*/
#define _GNU_SOURCE
-#include <errno.h>
#include <grp.h>
#include <grp.h>
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <lttng/lttng.h>
-
#include <lttng-sessiond-comm.h>
#include <lttng-sessiond-comm.h>
-#include "lttngerr.h"
-#include "lttng-share.h"
+#include <lttng-share.h>
+#include <lttng/lttng.h>
+#include <lttngerr.h>
/* Socket to session daemon for communication */
static int sessiond_socket;
/* Socket to session daemon for communication */
static int sessiond_socket;
@@
-344,6
+343,16
@@
static int ask_sessiond(struct lttcomm_session_msg *lsm, void **buf)
goto end;
}
goto end;
}
+ /*
+ * Extra protection not to dereference a NULL pointer. If buf is NULL at
+ * this point, an error is returned and data is freed.
+ */
+ if (buf == NULL) {
+ ret = -1;
+ free(data);
+ goto end;
+ }
+
*buf = data;
ret = size;
*buf = data;
ret = size;
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