From: Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com>
To: Don Brace <don.brace@microchip.com>,
"James E . J . Bottomley" <James.Bottomley@HansenPartnership.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
storagedev@microchip.com
Cc: linux-scsi@vger.kernel.org,
linux-kernel-mentees@lists.linuxfoundation.org,
skhan@linuxfoundation.org, david.hunter.linux@gmail.com,
bhanuseshukumar@gmail.com
Subject: [PATCH] scsi: Use kmalloc_array to prevent overflow of dynamic size calculation
Date: Wed, 1 Oct 2025 17:09:35 +0530 [thread overview]
Message-ID: <20251001113935.52596-1-bhanuseshukumar@gmail.com> (raw)
Use kmalloc_array to avoid potential overflow during dynamic size calculation
inside kmalloc.
Signed-off-by: Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 125944941601..7ff39f1faf38 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -8937,7 +8937,7 @@ static int pqi_host_alloc_mem(struct pqi_ctrl_info *ctrl_info,
if (sg_count == 0 || sg_count > PQI_HOST_MAX_SG_DESCRIPTORS)
goto out;
- host_memory_descriptor->host_chunk_virt_address = kmalloc(sg_count * sizeof(void *), GFP_KERNEL);
+ host_memory_descriptor->host_chunk_virt_address = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
if (!host_memory_descriptor->host_chunk_virt_address)
goto out;
--
2.34.1
next reply other threads:[~2025-10-01 11:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-01 11:39 Bhanu Seshu Kumar Valluri [this message]
2025-10-03 14:12 ` [PATCH] scsi: Use kmalloc_array to prevent overflow of dynamic size calculation Don.Brace
2025-10-03 14:53 ` James Bottomley
2025-10-04 4:25 ` Bhanu Seshu Kumar Valluri
2025-10-06 11:28 ` Niklas Cassel
2025-10-07 6:18 ` Bhanu Seshu Kumar Valluri
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