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authorWillem de Bruijn <willemb@google.com>2014-09-04 10:15:45 -0400
committerDavid S. Miller <davem@davemloft.net>2014-09-05 17:31:03 -0700
commit18a47e6d8af01db1b691802a6bb8eae73d83ad9e (patch)
tree2fccea7845dc27a4d5543aa58c21fabf5ef0f033 /Documentation/networking
parentb1c849276b5e199f94501101c07ee9cb6ced4935 (diff)
net-timestamp: fix allocation error in test
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>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/timestamping/txtimestamp.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/Documentation/networking/timestamping/txtimestamp.c b/Documentation/networking/timestamping/txtimestamp.c
index e5b0b98a89af..b32fc2a07734 100644
--- a/Documentation/networking/timestamping/txtimestamp.c
+++ b/Documentation/networking/timestamping/txtimestamp.c
@@ -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;

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