Bug 4042 - [ANCK 5.10] CVE-2022-47946
Summary: [ANCK 5.10] CVE-2022-47946
Status: RESOLVED FIXED
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: fs (show other bugs) fs
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: songkai
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-02-11 15:05 UTC by songkai
Modified: 2023-02-14 17:29 UTC (History)
4 users (show)

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Description songkai inspur_group 2023-02-11 15:05:07 UTC 
Description

An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can be skipped. An attack can occur in some situations by forking a process and then quickly terminating it. NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of io_sqpoll_wait_sq.
Comment 2 Joseph Qi alibaba_cloud_group 2023-02-14 10:20:48 UTC 
(In reply to josephqi from comment #1)
> https://gitee.com/anolis/cloud-kernel/pulls/1173

Please see my comments on PR, and assign me (josephhz) as the reviewer, so that I can merge it into ANCK mainline, thanks.
Comment 3 Joseph Qi alibaba_cloud_group 2023-02-14 17:29:19 UTC 
merged