diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2018-06-28 23:34:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-22 15:16:08 +0200 |
| commit | 1df397963a05affd16809b9b705392b56473eb0f (patch) | |
| tree | edf055f51acf1051d04441d11e4af3f579e77c43 | |
| parent | d3aaff449e24bd254db7a44e049461a127137114 (diff) | |
bpf, arm32: fix to use bpf_jit_binary_lock_ro api
commit 18d405af30bf6506bf2fc49056de7691c949812e upstream.
Any eBPF JIT that where its underlying arch supports ARCH_HAS_SET_MEMORY
would need to use bpf_jit_binary_{un,}lock_ro() pair instead of the
set_memory_{ro,rw}() pair directly as otherwise changes to the former
might break. arm32's eBPF conversion missed to change it, so fix this
up here.
Fixes: 39c13c204bb1 ("arm: eBPF JIT compiler")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm/net/bpf_jit_32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index b5030e1a41d8..5539fba892ce 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -1928,7 +1928,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog) /* there are 2 passes here */ bpf_jit_dump(prog->len, image_size, 2, ctx.target); - set_memory_ro((unsigned long)header, header->pages); + bpf_jit_binary_lock_ro(header); prog->bpf_func = (void *)ctx.target; prog->jited = 1; prog->jited_len = image_size; |