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| author | Daniel Borkmann <daniel@iogearbox.net> | 2019-11-02 02:18:01 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-11-02 22:39:13 +0300 |
| commit | 251e2d337a1a4f2572439ea29fd27f8699c5c368 (patch) | |
| tree | 53bc31ae0551e46b9dadc29dbbb7cc44fef1425d /samples/bpf/test_probe_write_user_kern.c | |
| parent | 6e07a6341277a1dbdf5ed0c41921033c234c1635 (diff) | |
| download | linux-251e2d337a1a4f2572439ea29fd27f8699c5c368.tar.xz | |
bpf, samples: Use bpf_probe_read_user where appropriate
Use bpf_probe_read_user() helper instead of bpf_probe_read() for samples that
attach to kprobes probing on user addresses.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/5b0144b3f8e031ec5e2438bd7de8d7877e63bf2f.1572649915.git.daniel@iogearbox.net
Diffstat (limited to 'samples/bpf/test_probe_write_user_kern.c')
| -rw-r--r-- | samples/bpf/test_probe_write_user_kern.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/bpf/test_probe_write_user_kern.c b/samples/bpf/test_probe_write_user_kern.c index a543358218e6..b7c48f37132c 100644 --- a/samples/bpf/test_probe_write_user_kern.c +++ b/samples/bpf/test_probe_write_user_kern.c @@ -37,7 +37,7 @@ int bpf_prog1(struct pt_regs *ctx) if (sockaddr_len > sizeof(orig_addr)) return 0; - if (bpf_probe_read(&orig_addr, sizeof(orig_addr), sockaddr_arg) != 0) + if (bpf_probe_read_user(&orig_addr, sizeof(orig_addr), sockaddr_arg) != 0) return 0; mapped_addr = bpf_map_lookup_elem(&dnat_map, &orig_addr); |