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一、漏洞信息
漏洞编号： CVE-2022-47946
漏洞归属组件： io_uring
漏洞归属的版本：5.10
CVSS V3.0分值：
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
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.
漏洞公开时间：12/23/2022
漏洞创建时间：12/23/2022
漏洞详情参考链接：https://nvd.nist.gov/vuln/detail/CVE-2022-47946
漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/doc/md/manual.md
二、漏洞分析结构反馈
影响性分析说明：
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.
openEuler评分：
受影响版本排查(受影响/不受影响)：
openEuler-22.03-LTS
OLK-5.10
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