[PATCH bpf-next v2] libbpf: fix build error introduced by legacy kprobe feature
From: Rafael David Tinoco <hidden>
Date: 2021-09-14 21:36:02
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Fix commit 467b3225553a ("libbpf: Introduce legacy kprobe events
support") build issue under FORTIFY_SOURCE.
Reported-by: sunyucong@gmail.com
Cc: andrii.nakryiko@gmail.com
Signed-off-by: Rafael David Tinoco <redacted>
---
tools/lib/bpf/libbpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 6ecfdc1fa7ba..d962796024c8 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c@@ -8997,7 +8997,7 @@ static int poke_kprobe_events(bool add, const char *name, bool retprobe, uint64_ { int fd, ret = 0; pid_t p = getpid(); - char cmd[192], probename[128], probefunc[128]; + char cmd[288] = "\0", probename[128] = "\0", probefunc[128] = "\0"; const char *file = "/sys/kernel/debug/tracing/kprobe_events"; if (retprobe)
--
2.30.2