Blame 0014-scsi-megasas-use-appropriate-property-buffer-size.patch
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From: Prasad J Pandit <pjp@fedoraproject.org>
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Date: Wed, 25 May 2016 16:01:29 +0530
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Subject: [PATCH] scsi: megasas: use appropriate property buffer size
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When setting MegaRAID SAS controller properties via MegaRAID
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Firmware Interface(MFI) commands, a user supplied size parameter
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is used to set property value. Use appropriate size value to avoid
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OOB access issues.
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Reported-by: Li Qiang <liqiang6-s@360.cn>
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Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
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Message-Id: <1464172291-2856-2-git-send-email-ppandit@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit 1b85898025c4cd95dce673d15e67e60e98e91731)
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---
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hw/scsi/megasas.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
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index a63a581..dcbd3e1 100644
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--- a/hw/scsi/megasas.c
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+++ b/hw/scsi/megasas.c
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@@ -1446,7 +1446,7 @@ static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
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dcmd_size);
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return MFI_STAT_INVALID_PARAMETER;
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}
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- dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
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+ dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg);
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trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
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return MFI_STAT_OK;
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}
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