| commit | 8f8d28e4d6d815a391285e121c3a53a0b6cb9e7b | [log] [tgz] |
|---|---|---|
| author | Andrey Konovalov <andreyknvl@google.com> | Wed Mar 29 16:11:21 2017 +0200 |
| committer | David S. Miller <davem@davemloft.net> | Thu Mar 30 11:03:59 2017 -0700 |
| tree | 624d40509e1e573450288151977e59c36da05fc6 | |
| parent | 2b6867c2ce76c596676bec7d2d525af525fdc6e2 [diff] |
net/packet: fix overflow in check for tp_frame_nr When calculating rb->frames_per_block * req->tp_block_nr the result can overflow. Add a check that tp_block_size * tp_block_nr <= UINT_MAX. Since frames_per_block <= tp_block_size, the expression would never overflow. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>