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net-timestamp: fix allocation error in test

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A buffer is incorrectly zeroed to the length of the pointer. If
cfg_payload_len < sizeof(void *) this can overwrites unrelated memory.
The buffer contents are never read, so no need to zero.

Fixes: 8fe2f761cae9 ("net-timestamp: expand documentation")

Reported-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Willem de Bruijn 2014-09-04 10:15:45 -04:00 committed by David S. Miller
parent b1c849276b
commit 18a47e6d8a
1 changed files with 0 additions and 1 deletions
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Documentation/networking/timestamping/txtimestamp.c
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@ -192,7 +192,6 @@ static int recv_errmsg(int fd)
memset(&msg, 0, sizeof(msg));
memset(&entry, 0, sizeof(entry));
memset(ctrl, 0, sizeof(ctrl));
memset(data, 0, sizeof(data));
entry.iov_base = data;
entry.iov_len = cfg_payload_len;