redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads() 

If ib_dma_mapping_error() returns non-zero value,
ib_mad_post_receive_mads() will jump out of loops and return -ENOMEM
without freeing mad_priv. Fix this memory-leak problem by freeing mad_priv
in this case.

Fixes: 2c34e68f42 ("IB/mad: Check and handle potential DMA mapping errors")
Link: https://lore.kernel.org/r/20200612063824.180611-1-guofan5@huawei.com
Signed-off-by: Fan Guo <guofan5@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
alistair/sunxi64-5.8
Fan Guo 2020-06-12 14:38:24 +08:00 committed by Jason Gunthorpe
parent 9e0dc7b9e1
commit a17f4bed81
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/core/mad.c
View File

@ -2718,6 +2718,7 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
DMA_FROM_DEVICE);
if (unlikely(ib_dma_mapping_error(qp_info->port_priv->device,
sg_list.addr))) {
kfree(mad_priv);
ret = -ENOMEM;
break;
}