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| author | Arjun Roy <arjunroy@google.com> | 2020-02-25 23:38:54 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-27 07:24:22 +0300 |
| commit | 0b7f41f68710ccbf7d029c749616e5d26ae8f74d (patch) | |
| tree | b9873f953bf4389af332e307fa55efa8d613f11e /net/smc/smc_ib.c | |
| parent | ebb4a4bf76f164457184a3f43ebc1552416bc823 (diff) | |
| download | linux-0b7f41f68710ccbf7d029c749616e5d26ae8f74d.tar.xz | |
tcp-zerocopy: Update returned getsockopt() optlen.
TCP receive zerocopy currently does not update the returned optlen for
getsockopt() if the user passed in a larger than expected value.
Thus, userspace cannot properly determine if all the fields are set in
the passed-in struct. This patch sets the optlen for this case before
returning, in keeping with the expected operation of getsockopt().
Fixes: c8856c051454 ("tcp-zerocopy: Return inq along with tcp receive zerocopy.")
Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.c')
0 files changed, 0 insertions, 0 deletions