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Subject[PATCH] megaraid: fix mega_cmd_done CMDID_INT_CMDS
Date
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
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