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| author | Wang Hai <wanghai38@huawei.com> | 2020-11-13 19:51:52 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-24 13:29:05 +0100 |
| commit | f5d6b6c2e9931e8cedeae29909cd4da362acfc25 (patch) | |
| tree | 71f1b3e2926dd7faf13a3f773a1206b032136c24 | |
| parent | 6eadbc3b7ab77f6d19cbaaba254a03799e21038c (diff) | |
| download | linux-stable-f5d6b6c2e9931e8cedeae29909cd4da362acfc25.tar.gz | |
tools, bpftool: Add missing close before bpftool net attach exit
[ Upstream commit 50431b45685b600fc2851a3f2b53e24643efe6d3 ]
progfd is created by prog_parse_fd() in do_attach() and before the latter
returns in case of success, the file descriptor should be closed.
Fixes: 04949ccc273e ("tools: bpftool: add net attach command to attach XDP on interface")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201113115152.53178-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | tools/bpf/bpftool/net.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/tools/bpf/bpftool/net.c b/tools/bpf/bpftool/net.c index 4f52d3151616..bb311ccc6c48 100644 --- a/tools/bpf/bpftool/net.c +++ b/tools/bpf/bpftool/net.c @@ -312,8 +312,8 @@ static int do_attach(int argc, char **argv) ifindex = net_parse_dev(&argc, &argv); if (ifindex < 1) { - close(progfd); - return -EINVAL; + err = -EINVAL; + goto cleanup; } if (argc) { @@ -321,8 +321,8 @@ static int do_attach(int argc, char **argv) overwrite = true; } else { p_err("expected 'overwrite', got: '%s'?", *argv); - close(progfd); - return -EINVAL; + err = -EINVAL; + goto cleanup; } } @@ -330,17 +330,17 @@ static int do_attach(int argc, char **argv) if (is_prefix("xdp", attach_type_strings[attach_type])) err = do_attach_detach_xdp(progfd, attach_type, ifindex, overwrite); - - if (err < 0) { + if (err) { p_err("interface %s attach failed: %s", attach_type_strings[attach_type], strerror(-err)); - return err; + goto cleanup; } if (json_output) jsonw_null(json_wtr); - - return 0; +cleanup: + close(progfd); + return err; } static int do_detach(int argc, char **argv) |