net: mvpp2: prevent buffer overflow in mvpp22_rss_ctx()

Browse source

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: 895586d5dc ("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>

...

This commit is contained in:

Dan Carpenter 2020-05-06 13:16:22 +03:00 • committed by David S. Miller

parent bf5525f3a8

commit 39bd16df7c

1 changed files with 2 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

View file