[GIT PULL] SCSI fixes for 5.8-rc3

From: James Bottomley
Date: Tue Sep 01 2020 - 17:05:02 EST


Three minor fixes, all in drivers.

The patch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes

The short changelog is:

Dan Carpenter (1):
scsi: libcxgbi: Fix a use after free in cxgbi_conn_xmit_pdu()

Niklas Cassel (1):
scsi: scsi_debug: Remove superfluous close zone in resp_open_zone()

Ye Bin (1):
scsi: qedf: Fix null ptr reference in qedf_stag_change_work

With the diffstat:

drivers/scsi/cxgbi/libcxgbi.c | 2 +-
drivers/scsi/qedf/qedf_main.c | 2 +-
drivers/scsi/scsi_debug.c | 2 --
3 files changed, 2 insertions(+), 4 deletions(-)

And full diff below.

James

---

diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 71aebaf533ea..0e8621a6956d 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -2457,10 +2457,10 @@ int cxgbi_conn_xmit_pdu(struct iscsi_task *task)
return err;
}

- __kfree_skb(skb);
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"itt 0x%x, skb 0x%p, len %u/%u, xmit err %d.\n",
task->itt, skb, skb->len, skb->data_len, err);
+ __kfree_skb(skb);
iscsi_conn_printk(KERN_ERR, task->conn, "xmit err %d.\n", err);
iscsi_conn_failure(task->conn, ISCSI_ERR_XMIT_FAILED);
return err;
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 3f04f2c81366..5ca424df355c 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3863,7 +3863,7 @@ void qedf_stag_change_work(struct work_struct *work)
container_of(work, struct qedf_ctx, stag_work.work);

if (!qedf) {
- QEDF_ERR(&qedf->dbg_ctx, "qedf is NULL");
+ QEDF_ERR(NULL, "qedf is NULL");
return;
}
QEDF_ERR(&qedf->dbg_ctx, "Performing software context reset.\n");
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 139f0073da37..1ad7260d4758 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4482,8 +4482,6 @@ static int resp_open_zone(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
goto fini;
}

- if (zc == ZC2_IMPLICIT_OPEN)
- zbc_close_zone(devip, zsp);
zbc_open_zone(devip, zsp, true);
fini:
write_unlock(macc_lckp);