Bug 223 - [ANCK 4.19] overlayfs async IO 可能存在 UAF
Summary: [ANCK 4.19] overlayfs async IO 可能存在 UAF
Status: RESOLVED FIXED
Alias: None
Product: ANCK 4.19 Dev
Classification: ANCK
Component: fs (show other bugs) fs
Version: 4.19-026.x
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Joseph Qi
QA Contact: shuming
URL:
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Keywords:
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Reported: 2021-12-29 11:17 UTC by Joseph Qi
Modified: 2022-08-16 11:51 UTC (History)
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Description Joseph Qi alibaba_cloud_group 2021-12-29 11:17:32 UTC 
社区上游针对 overlayfs async IO 有两个修复补丁，需要修复：

原始补丁：
2406a307ac7d ("ovl: implement async IO routines")

修复补丁：
9a2544037600 ovl: fix use after free in struct ovl_aio_req
c853680453ac ovl: fix lockdep warning for async write
Comment 1 Joseph Qi alibaba_cloud_group 2021-12-29 17:30:47 UTC 
https://gitee.com/anolis/cloud-kernel/pulls/67