On 4/24/25 23:14, > wrote:
From: Jonathan Wiepert <jonathan.wiepert@xxxxxxxxx>
This patch fixes a thread safety bug where libbpf_print uses the
global variable storing the print function pointer rather than the local
variable that had the print function set via __atomic_load_n.
Signed-off-by: Jonathan Wiepert <jonathan.wiepert@xxxxxxxxx>
---
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 56250b5ac5b0..ea97a84460cd 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -284,7 +284,7 @@ void libbpf_print(enum libbpf_print_level level, const char *format, ...)
old_errno = errno;
va_start(args, format);
- __libbpf_pr(level, format, args);
+ print_fn(level, format, args);
va_end(args);
errno = old_errno;
Acked-by: Mykyta Yatsenko <mykyta.yatsenko5@xxxxxxxxx>
