[PATCH iproute2] bpf: indicate lderr when bpf_apply_relo_data fails
flat view
STALE3405d
From: Daniel Borkmann <daniel@iogearbox.net>
Date: 2017-06-27 00:48:55
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
When LLVM wrongly generates a rodata relo entry (llvm BZ #33599), then just bail out instead of probing for prog w/o reloc, which will fail in this case anyway. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> --- lib/bpf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/bpf.c b/lib/bpf.c
index ae4d97d..6b5a96d 100644
--- a/lib/bpf.c
+++ b/lib/bpf.c@@ -1795,8 +1795,10 @@ static int bpf_fetch_prog_relo(struct bpf_elf_ctx *ctx, const char *section, *sseen = true; ret = bpf_apply_relo_data(ctx, &data_relo, &data_insn); - if (ret < 0) + if (ret < 0) { + *lderr = true; return ret; + } memset(&prog, 0, sizeof(prog)); prog.type = ctx->type;
--
1.9.3