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Merge branch 'master' into benchmark
[lttng-tools.git]
/
liblttngctl
/
lttngctl.c
diff --git
a/liblttngctl/lttngctl.c
b/liblttngctl/lttngctl.c
index b83d5ca92c83b516ade2f4c05336be116839b3fc..b64ace2e6d80de0ce085791f698604e53f8eb523 100644
(file)
--- a/
liblttngctl/lttngctl.c
+++ b/
liblttngctl/lttngctl.c
@@
-343,6
+343,16
@@
static int ask_sessiond(struct lttcomm_session_msg *lsm, void **buf)
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;
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