From: Dan Carpenter <dan.carpenter@oracle.com>
To: Adaptec OEM Raid Solutions <aacraid@adaptec.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] scsi: dpt_i2o: double free if adpt_i2o_online_hba() fails
Date: Fri, 16 Dec 2016 09:35:39 +0000 [thread overview]
Message-ID: <20161216093539.GC13942@elgon.mountain> (raw)
There are two places where adpt_i2o_online_hba() is called. Both
callers call adpt_i2o_delete_hba(pHba) if adpt_i2o_online_hba() fails
and since we also free it here that causes a double free bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
This bug pre-dates git.
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 27c0dce22e72..7d32c2f07067 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -2768,16 +2768,12 @@ static int adpt_i2o_activate_hba(adpt_hba* pHba)
static int adpt_i2o_online_hba(adpt_hba* pHba)
{
- if (adpt_i2o_systab_send(pHba) < 0) {
- adpt_i2o_delete_hba(pHba);
+ if (adpt_i2o_systab_send(pHba) < 0)
return -1;
- }
/* In READY state */
- if (adpt_i2o_enable_hba(pHba) < 0) {
- adpt_i2o_delete_hba(pHba);
+ if (adpt_i2o_enable_hba(pHba) < 0)
return -1;
- }
/* In OPERATIONAL state */
return 0;
next reply other threads:[~2016-12-16 9:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-16 9:35 Dan Carpenter [this message]
2016-12-20 22:46 ` [patch] scsi: dpt_i2o: double free if adpt_i2o_online_hba() fails Martin K. Petersen
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