From: Gu Shengxian gushengxian@yulong.com
commit bc832065b60f973771ff3e657214bb21b559833c upstream.
va_list 'ap' was opened but not closed by va_end() in error case. It should be closed by va_end() before the return.
Fixes: aa52bcbe0e72 ("tools: bpftool: Fix json dump crash on powerpc") Signed-off-by: Gu Shengxian gushengxian@yulong.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Cc: Jiri Olsa jolsa@redhat.com Link: https://lore.kernel.org/bpf/20210706013543.671114-1-gushengxian507419@gmail.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/bpf/bpftool/jit_disasm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/tools/bpf/bpftool/jit_disasm.c +++ b/tools/bpf/bpftool/jit_disasm.c @@ -44,11 +44,13 @@ static int fprintf_json(void *out, const { va_list ap; char *s; + int err;
va_start(ap, fmt); - if (vasprintf(&s, fmt, ap) < 0) - return -1; + err = vasprintf(&s, fmt, ap); va_end(ap); + if (err < 0) + return -1;
if (!oper_count) { int i;