32 lines
1.0 KiB
Diff
32 lines
1.0 KiB
Diff
From c2ec0efb903e27f83cb9a54041764f76e2e1d390 Mon Sep 17 00:00:00 2001
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From: jiangdongxu <jiangdongxu1@huawei.com>
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Date: Fri, 11 Feb 2022 16:12:21 +0800
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Subject: [PATCH 1/6] seabios: convert value of be16_to_cpu to u64 before
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shifting
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be16_to_cpu(scsi_lun->lun[i]) is 16 bits and left shifting by more than 16 will have undefined behaviour.
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convert it to u64 before shifting.
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Signed-off-by: liuxiangdong <liuxiangdong5@huawei.com>
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Signed-off-by: jiangdongxu <jiangdongxu1@huawei.com>
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---
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roms/seabios/src/hw/blockcmd.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/roms/seabios/src/hw/blockcmd.c b/roms/seabios/src/hw/blockcmd.c
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index 6b6fea9707..af6d33544f 100644
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--- a/roms/seabios/src/hw/blockcmd.c
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+++ b/roms/seabios/src/hw/blockcmd.c
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@@ -210,7 +210,7 @@ static u64 scsilun2u64(struct scsi_lun *scsi_lun)
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int i;
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u64 ret = 0;
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for (i = 0; i < ARRAY_SIZE(scsi_lun->lun); i++)
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- ret |= be16_to_cpu(scsi_lun->lun[i]) << (16 * i);
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+ ret |= (u64)be16_to_cpu(scsi_lun->lun[i]) << (16 * i);
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return ret;
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}
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--
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2.27.0
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