From: Danila Chernetsov <listdansp@mail.ru>
To: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Danila Chernetsov <listdansp@mail.ru>,
Sumit Saxena <sumit.saxena@broadcom.com>,
Shivasharan S <shivasharan.srikanteshwara@broadcom.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org,
linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org
Subject: [PATCH] megaraid: fix mega_cmd_done CMDID_INT_CMDS
Date: Fri, 17 Mar 2023 17:51:09 +0000 [thread overview]
Message-ID: <20230317175109.18585-1-listdansp@mail.ru> (raw)
When cmdid == CMDID_INT_CMDS, the 'cmds' pointer is NULL but is dereferenced below.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 0f2bb84d2a68 ("[SCSI] megaraid: simplify internal command handling")
Signed-off-by: Danila Chernetsov <listdansp@mail.ru>
---
drivers/scsi/megaraid.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index bf491af9f0d6..16e2cf848c6e 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1441,6 +1441,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
*/
if (cmdid == CMDID_INT_CMDS) {
scb = &adapter->int_scb;
+ cmd = scb->cmd;
list_del_init(&scb->list);
scb->state = SCB_FREE;
--
2.25.1
next reply other threads:[~2023-03-17 18:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-17 17:51 Danila Chernetsov [this message]
2023-04-03 2:15 ` [PATCH] megaraid: fix mega_cmd_done CMDID_INT_CMDS Martin K. Petersen
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