From: Klaus Jensen <its@irrelevant.dk>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>,
qemu-block@nongnu.org, Dmitry Fomichev <dmitry.fomichev@wdc.com>,
Klaus Jensen <k.jensen@samsung.com>,
Max Reitz <mreitz@redhat.com>, Keith Busch <kbusch@kernel.org>,
Minwoo Im <minwoo.im.dev@gmail.com>,
Klaus Jensen <its@irrelevant.dk>
Subject: [PATCH for-5.2 2/3] hw/block/nvme: fix uint16_t use of uint32_t sgls member
Date: Wed, 4 Nov 2020 11:22:47 +0100 [thread overview]
Message-ID: <20201104102248.32168-3-its@irrelevant.dk> (raw)
In-Reply-To: <20201104102248.32168-1-its@irrelevant.dk>
From: Klaus Jensen <k.jensen@samsung.com>
nvme_map_sgl_data erroneously uses the sgls member of NvmeIdNs as a
uint16_t.
Reported-by: Coverity (CID 1436129)
Fixes: cba0a8a344fe ("hw/block/nvme: add support for scatter gather lists")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
hw/block/nvme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 080d782f1c2b..2bdc50eb6fce 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -452,7 +452,7 @@ static uint16_t nvme_map_sgl_data(NvmeCtrl *n, QEMUSGList *qsg,
* segments and/or descriptors. The controller might accept
* ignoring the rest of the SGL.
*/
- uint16_t sgls = le16_to_cpu(n->id_ctrl.sgls);
+ uint32_t sgls = le32_to_cpu(n->id_ctrl.sgls);
if (sgls & NVME_CTRL_SGLS_EXCESS_LENGTH) {
break;
}
--
2.29.1
next prev parent reply other threads:[~2020-11-04 10:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 10:22 [PATCH for-5.2 0/3] hw/block/nvme: coverity fixes Klaus Jensen
2020-11-04 10:22 ` [PATCH for-5.2 1/3] hw/block/nvme: fix null ns in register namespace Klaus Jensen
2020-11-04 10:57 ` Max Reitz
2020-11-04 11:08 ` Philippe Mathieu-Daudé
2020-11-04 10:22 ` Klaus Jensen [this message]
2020-11-04 10:58 ` [PATCH for-5.2 2/3] hw/block/nvme: fix uint16_t use of uint32_t sgls member Max Reitz
2020-11-04 11:09 ` Philippe Mathieu-Daudé
2020-11-04 10:22 ` [PATCH for-5.2 3/3] hw/block/nvme: fix free of array-typed value Klaus Jensen
2020-11-04 10:51 ` Philippe Mathieu-Daudé
2020-11-04 10:59 ` Max Reitz
2020-11-04 11:04 ` Klaus Jensen
2020-11-04 11:10 ` Max Reitz
2020-11-04 11:11 ` [PATCH for-5.2 0/3] hw/block/nvme: coverity fixes Max Reitz
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