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(parent: bf5525f) | patch
net: mvpp2: prevent buffer overflow in mvpp22_rss_ctx()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 6 May 2020 10:16:22 +0000 (13:16 +0300)
committerDavid S. Miller <davem@davemloft.net>
Wed, 6 May 2020 21:15:46 +0000 (14:15 -0700)
commit39bd16df7c31bb8cf5dfd0c88e42abd5ae10029d
treef0d1b06ad51170facfc101d6991082993fa55549tree | snapshot
parentbf5525f3a8e3248be5aa5defe5aaadd60e1c1ba1commit | diff
net: mvpp2: prevent buffer overflow in mvpp22_rss_ctx()

The "rss_context" variable comes from the user via  ethtool_get_rxfh().
It can be any u32 value except zero.  Eventually it gets passed to
mvpp22_rss_ctx() and if it is over MVPP22_N_RSS_TABLES (8) then it
results in an array overflow.

Fixes: 895586d5dc32 ("net: mvpp2: cls: Use RSS contexts to handle RSS tables")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c diff | blob | history
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