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net: enetc: fix array underflow in error handling code
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 9 Apr 2021 12:24:28 +0000 (15:24 +0300)
committerJakub Kicinski <kuba@kernel.org>
Fri, 9 Apr 2021 23:48:29 +0000 (16:48 -0700)
commit626b598aa8becc95ad1c56e721c90ddfc6a8c409
treec209b9b4cdb13216b5650217bdff6d1a67e189c2tree
parent524e001b7dcaf50ade6eb115745561a46e374b06commit | diff
net: enetc: fix array underflow in error handling code

This loop will try to unmap enetc_unmap_tx_buff[-1] and crash.

Fixes: 9d2b68cc108d ("net: enetc: add support for XDP_REDIRECT")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/YHBHfCY/yv3EnM9z@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/freescale/enetc/enetc.c diff | blob | history
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