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| author | Mingming Cao <[email protected]> | 2020-08-25 17:26:41 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2020-08-26 00:28:14 +0000 |
| commit | 9f13457377907fa253aef560e1a37e1ca4197f9b (patch) | |
| tree | aa0c308053539adcc7f419e58799e5725d65d271 /drivers/net/wan/lapbether.c | |
| parent | net: ethernet: ti: cpsw_new: fix clean up of vlan mc entries for host port (diff) | |
| download | kernel-9f13457377907fa253aef560e1a37e1ca4197f9b.tar.gz kernel-9f13457377907fa253aef560e1a37e1ca4197f9b.zip | |
ibmvnic fix NULL tx_pools and rx_tools issue at do_reset
At the time of do_rest, ibmvnic tries to re-initalize the tx_pools
and rx_pools to avoid re-allocating the long term buffer. However
there is a window inside do_reset that the tx_pools and
rx_pools were freed before re-initialized making it possible to deference
null pointers.
This patch fix this issue by always check the tx_pool
and rx_pool are not NULL after ibmvnic_login. If so, re-allocating
the pools. This will avoid getting into calling reset_tx/rx_pools with
NULL adapter tx_pools/rx_pools pointer. Also add null pointer check in
reset_tx_pools and reset_rx_pools to safe handle NULL pointer case.
Signed-off-by: Mingming Cao <[email protected]>
Signed-off-by: Dany Madden <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/wan/lapbether.c')
0 files changed, 0 insertions, 0 deletions