------------------------------------------------------------------------
*From*: P J P
*Subject*: [Qemu-devel] [PATCH 1/3] scsi: megasas: use appropriate
property buffer size
*Date*: Wed, 25 May 2016 16:01:29 +0530
------------------------------------------------------------------------
From: Prasad J Pandit <address@hidden>
When setting MegaRAID SAS controller properties via MegaRAID
Firmware Interface(MFI) commands, a user supplied size parameter
is used to set property value. Use appropriate size value to avoid
OOB access issues.
Reported-by: Li Qiang <address@hidden>
Signed-off-by: Prasad J Pandit <address@hidden>
---
hw/scsi/megasas.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/qemu-xen/hw/scsi/megasas.c b/tools/qemu-xen/hw/scsi/megasas.c
index a63a581..dcbd3e1 100644
--- a/tools/qemu-xen/hw/scsi/megasas.c
+++ b/tools/qemu-xen/hw/scsi/megasas.c
@@ -1446,7 +1446,7 @@ static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
- dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
+ dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg);
trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
return MFI_STAT_OK;
}
--
2.5.5