netvsc: fix use after free on module removal

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The NAPI data structure is embedded in the netvsc_device structure
and is freed when device is closed. There is still a reference
(in NAPI list) to this which causes a crash in netif_napi_del
when device is removed. Fix by managing NAPI instances correctly.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stephen hemminger 2017-04-19 15:22:02 -07:00 • committed by David S. Miller

parent dfb05553a5

commit 76bb5db5c7

2 changed files with 11 additions and 7 deletions

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9

drivers/net/hyperv/netvsc.c

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9

drivers/net/hyperv/rndis_filter.c

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