CVE-2022-47946

Published on: Not Yet Published

Last Modified on: 01/04/2023 08:06:00 PM UTC

CVE-2022-47946

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Certain versions of Linux Kernel from Linux contain the following vulnerability:

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.

CVE-2022-47946 has been assigned by [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.5 - MEDIUM

Attack Vector ^ⓘ	Attack Complexity	Privileges Required	User Interaction
LOCAL	LOW	LOW	NONE
Scope	Confidentiality Impact	Integrity Impact	Availability Impact
UNCHANGED	NONE	NONE	HIGH

CVE References

Description	Tags ^ⓘ	Link
oss-security - Re: Linux kernel: use-after-free in io_sqpoll_wait_sq	www.openwall.com text/html	MLIST [oss-security] 20221227 Re: Linux kernel: use-after-free in io_sqpoll_wait_sq
oss-security - Linux kernel: use-after-free in io_sqpoll_wait_sq	www.openwall.com text/html	MISC www.openwall.com/lists/oss-security/2022/12/22/2
kernel/git/stable/linux.git - Linux kernel stable tree	git.kernel.org text/html	MISC git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161&id=0f544353fec8e717d37724d95b92538e1de79e86

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Related QID Numbers

181444 Debian Security Update for linux (CVE-2022-47946)

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Linux	Linux Kernel	All	All	All	All

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*:

No vendor comments have been submitted for this CVE

Social Mentions

Source	Title	Posted (UTC)
@CVEreport	CVE-2022-47946 : An issue was discovered in the #Linux #kernel 5.10.x before 5.10.155. A use-after-free in io_sqpol… twitter.com/i/web/status/1…	2022-12-23 22:06:12
/r/netcve	CVE-2022-47946	2022-12-23 23:38:47