net: ethernet: ezchip: fix UAF in nps_enet_remove

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[ Upstream commit e4b8700e07 ]

priv is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing priv
pointer. So, fix it by moving free_netdev() after netif_napi_del()
call.

Fixes: 0dd0770936 ("NET: Add ezchip ethernet driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Pavel Skripkin 2021-06-18 19:14:31 +03:00 • committed by Greg Kroah-Hartman

parent 7e6f10fb79

commit 062e01fdb2

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/ezchip/nps_enet.c

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