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(parent: 823cafa) | patch
macvtap: fix uninitialized access on TUNSETIFF
authorMichael S. Tsirkin <mst@redhat.com>
Tue, 16 Dec 2014 13:04:56 +0000 (15:04 +0200)
committerDavid S. Miller <davem@davemloft.net>
Tue, 16 Dec 2014 16:19:41 +0000 (11:19 -0500)
commit3215eda0edda9c1e2903eac8b0548dbb93949436
treedfa9725a4c54e900c9a60999f29b0f65b72f96fdtree | snapshot
parent823cafa0c663286691d7659ff2be450a45c0dbd4commit | diff
macvtap: fix uninitialized access on TUNSETIFF

flags field in ifreq is only 16 bit wide, but
we read it as a 32 bit value.
If userspace doesn't zero-initialize unused fields,
this will lead to failures.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/macvtap.c diff | blob | history
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