macvtap: fix uninitialized access on TUNSETIFF

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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>

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Michael S. Tsirkin 2014-12-16 15:04:56 +02:00 • committed by David S. Miller

parent c286bbaf4f

commit 39ec7de709

1 changed files with 4 additions and 3 deletions

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7

drivers/net/macvtap.c

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