git: 33870019c5f2 - stable/12 - ibcore: Fix possible memory leak in ib_mad_post_receive_mads()

The branch stable/12 has been updated by hselasky:

URL: https://cgit.FreeBSD.org/src/commit/?id=33870019c5f247b4602f1f044feadcc46bafa514

commit 33870019c5f247b4602f1f044feadcc46bafa514
Author:     Hans Petter Selasky <hselasky@FreeBSD.org>
AuthorDate: 2022-05-19 08:06:42 +0000
Commit:     Hans Petter Selasky <hselasky@FreeBSD.org>
CommitDate: 2022-06-07 06:46:10 +0000

    ibcore: 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.
    
    Linux commit:
    a17f4bed811c60712d8131883cdba11a105d0161
    
    PR:             264057
    Sponsored by:   NVIDIA Networking
    
    (cherry picked from commit ad7741ff693a39bab59b75e432bd922a62f3ef0a)
---
 sys/ofed/drivers/infiniband/core/ib_mad.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/ofed/drivers/infiniband/core/ib_mad.c b/sys/ofed/drivers/infiniband/core/ib_mad.c
index 7bb6323a4c53..bf3b6f580526 100644
--- a/sys/ofed/drivers/infiniband/core/ib_mad.c
+++ b/sys/ofed/drivers/infiniband/core/ib_mad.c
@@ -2889,6 +2889,7 @@ 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;
 		}