[PATCH bpf-next v2 08/11] bpf: fix cbpf parser bug for octal numbers

[Daniel Borkmann]

Range is 0-7, not 0-9, otherwise parser silently excludes it from the
strtol() rather than throwing an error.

Reported-by: Marc Boschma <m...@boschma.cx>
Signed-off-by: Daniel Borkmann <dan...@iogearbox.net>
Acked-by: Alexei Starovoitov <a...@kernel.org>
Acked-by: Song Liu <songliubrav...@fb.com>
---
 tools/bpf/bpf_exp.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/bpf/bpf_exp.l b/tools/bpf/bpf_exp.l
index bd83149..4da8d05 100644
--- a/tools/bpf/bpf_exp.l
+++ b/tools/bpf/bpf_exp.l
@@ -175,7 +175,7 @@ extern void yyerror(const char *str);
                        yylval.number = strtol(yytext, NULL, 10);
                        return number;
                }
-([0][0-9]+)    {
+([0][0-7]+)    {
                        yylval.number = strtol(yytext + 1, NULL, 8);
                        return number;
                }
-- 
2.9.5