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net:enetc: bug fix for qos sfi operate space after freed 

'Dan Carpenter' reported:
This code frees "sfi" and then dereferences it on the next line:
>                 kfree(sfi);
>                 clear_bit(sfi->index, epsfp.psfp_sfi_bitmap);

This "sfi->index" should be "index".

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Po Liu 2020-05-07 18:57:38 +08:00 committed by David S. Miller
parent 7f960633a4
commit 571cf29644
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/freescale/enetc/enetc_qos.c
View File

@ -903,7 +903,7 @@ static void stream_filter_unref(struct enetc_ndev_priv *priv, u32 index)
enetc_streamfilter_hw_set(priv, sfi, false);
hlist_del(&sfi->node);
kfree(sfi);
clear_bit(sfi->index, epsfp.psfp_sfi_bitmap);
clear_bit(index, epsfp.psfp_sfi_bitmap);
}
}