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| author | David S. Miller <davem@davemloft.net> | 2017-04-06 07:25:07 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-06 08:24:51 -0700 |
| commit | 6f14f443d3e773439fb9cc6f2685ba90d5d026c5 (patch) | |
| tree | d45c11bba3458a805c4ac766ac85ebcf3c00b1eb /net/packet/af_packet.c | |
| parent | faeeb317a5615076dff1ff44b51e862e6064dbd0 (diff) | |
| parent | ea6b1720ce25f92f7a17b2e0c2b653d20773d10a (diff) | |
| download | op-kernel-dev-6f14f443d3e773439fb9cc6f2685ba90d5d026c5.zip op-kernel-dev-6f14f443d3e773439fb9cc6f2685ba90d5d026c5.tar.gz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Mostly simple cases of overlapping changes (adding code nearby,
a function whose name changes, for example).
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index a0dbe7c..8489bef 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -3665,6 +3665,8 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv return -EBUSY; if (copy_from_user(&val, optval, sizeof(val))) return -EFAULT; + if (val > INT_MAX) + return -EINVAL; po->tp_reserve = val; return 0; } @@ -4193,8 +4195,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, if (unlikely(!PAGE_ALIGNED(req->tp_block_size))) goto out; if (po->tp_version >= TPACKET_V3 && - (int)(req->tp_block_size - - BLK_PLUS_PRIV(req_u->req3.tp_sizeof_priv)) <= 0) + req->tp_block_size <= + BLK_PLUS_PRIV((u64)req_u->req3.tp_sizeof_priv)) goto out; if (unlikely(req->tp_frame_size < po->tp_hdrlen + po->tp_reserve)) @@ -4205,6 +4207,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, rb->frames_per_block = req->tp_block_size / req->tp_frame_size; if (unlikely(rb->frames_per_block == 0)) goto out; + if (unlikely(req->tp_block_size > UINT_MAX / req->tp_block_nr)) + goto out; if (unlikely((rb->frames_per_block * req->tp_block_nr) != req->tp_frame_nr)) goto out; |
