Bug 6093 - Leak the memory area that used for DMA if re-encrypt fail
Summary: Leak the memory area that used for DMA if re-encrypt fail
Status: NEW
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: X86 (show other bugs) X86
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Guanjun
QA Contact: shuming
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Reported: 2023-08-03 23:33 UTC by wojiaohanliyang
Modified: 2023-08-03 23:39 UTC (History)
2 users (show)

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Description wojiaohanliyang hygon_group 2023-08-03 23:33:13 UTC 
Description of problem:

For some instances, such as CSV guest, a memory region will be allocated and decrypted to support device's DMA. When the DMA has been completed, we should re-encrypt the decrypted memory region. As failure of re-encryption is unsafe,  don't free the corresponding memory region anymore.

Version-Release number of selected component (if applicable):


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Comment 1 小龙 admin 2023-08-03 23:39:13 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/1994