Messages in this thread Patch in this message | | | From | Michael Sartain <> | Subject | [PATCH v2 2/4] trace-cmd: Fix NULL pointer being passed to memcpy | Date | Mon, 16 Oct 2017 10:55:40 -0600 |
| |
Signed-off-by: Michael Sartain <mikesart@fastmail.com> --- trace-output.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/trace-output.c b/trace-output.c index bfe6331..bbb1637 100644 --- a/trace-output.c +++ b/trace-output.c @@ -929,7 +929,11 @@ tracecmd_add_option(struct tracecmd_output *handle, free(option); return NULL; } - memcpy(option->data, data, size); + + /* Some IDs (like TRACECMD_OPTION_TRACECLOCK) pass 0 / NULL data */ + if (size) + memcpy(option->data, data, size); + list_add_tail(&option->list, &handle->options); return option; -- 2.14.2
| |