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| author |   Daniel Borkmann <daniel@iogearbox.net> | 2018-08-08 19:23:14 +0200 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2018-08-08 12:06:17 -0700 |
| commit | 7c81c71730456845e6212dccbf00098faa66740f (patch) | |
| tree | 22562f2b30e843b45f880f531ac8986253355462 /tools/testing/selftests | |
| parent | bpf, sockmap: fix bpf_tcp_sendmsg sock error handling (diff) | |
| download | linux-dev-7c81c71730456845e6212dccbf00098faa66740f.tar.xz linux-dev-7c81c71730456845e6212dccbf00098faa66740f.zip | |
bpf, sockmap: fix leak in bpf_tcp_sendmsg wait for mem path
In bpf_tcp_sendmsg() the sk_alloc_sg() may fail. In the case of
ENOMEM, it may also mean that we've partially filled the scatterlist
entries with pages. Later jumping to sk_stream_wait_memory()
we could further fail with an error for several reasons, however
we miss to call free_start_sg() if the local sk_msg_buff was used.
Fixes: 4f738adba30a ("bpf: create tcp_bpf_ulp allowing BPF to monitor socket TX/RX data")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests')
0 files changed, 0 insertions, 0 deletions