diff options
| author | YANG LI <abaci-bugfix@linux.alibaba.com> | 2020-12-30 15:23:14 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-04 13:23:33 -0800 |
| commit | 862aecbd9569e563b979c0e23a908b43cda4b0b9 (patch) | |
| tree | 14b330efc3569d4c721f9439dfe93b76e6851cb2 | |
| parent | e4da63cda51f17fa1e86a10e84d47d692932530d (diff) | |
ibmvnic: fix: NULL pointer dereference.
The error is due to dereference a null pointer in function
reset_one_sub_crq_queue():
if (!scrq) {
netdev_dbg(adapter->netdev,
"Invalid scrq reset. irq (%d) or msgs(%p).\n",
scrq->irq, scrq->msgs);
return -EINVAL;
}
If the expression is true, scrq must be a null pointer and cannot
dereference.
Fixes: 9281cf2d5840 ("ibmvnic: avoid memset null scrq msgs")
Signed-off-by: YANG LI <abaci-bugfix@linux.alibaba.com>
Reported-by: Abaci <abaci@linux.alibaba.com>
Acked-by: Lijun Pan <ljp@linux.ibm.com>
Link: https://lore.kernel.org/r/1609312994-121032-1-git-send-email-abaci-bugfix@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 91ebcde30292..9778c83150f1 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2981,9 +2981,7 @@ static int reset_one_sub_crq_queue(struct ibmvnic_adapter *adapter, int rc; if (!scrq) { - netdev_dbg(adapter->netdev, - "Invalid scrq reset. irq (%d) or msgs (%p).\n", - scrq->irq, scrq->msgs); + netdev_dbg(adapter->netdev, "Invalid scrq reset.\n"); return -EINVAL; } |