macvlan: Fix device ref leak when purging bc_queue

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[ Upstream commit f6478218e6 ]

When a parent macvlan device is destroyed we end up purging its
broadcast queue without dropping the device reference count on
the packet source device.  This causes the source device to linger.

This patch drops that reference count.

Fixes: 260916dfb4 ("macvlan: Fix potential use-after free for...")
Reported-by: Joe Ghalam <Joe.Ghalam@dell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Herbert Xu 2017-04-20 20:55:12 +08:00 • committed by Greg Kroah-Hartman

parent 7bf657201c

commit ae88c43c01

1 changed files with 10 additions and 1 deletions

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drivers/net/macvlan.c

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