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Vulnerability CVE-2021-4023
Published: 2022-03-10
| Description: |
A flaw was found in the io-workqueue implementation in the Linux kernel versions prior to 5.15-rc1. The kernel can panic when an improper cancellation operation triggers the submission of new io-uring operations during a shortage of free space. This flaw allows a local user with permissions to execute io-uring requests to possibly crash the system. |
Type:
NVD-CWE-noinfo
CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
4.9/10 |
6.9/10 |
3.9/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
None |
None |
Complete |
References: |
https://bugzilla.redhat.com/show_bug.cgi?id=2026484
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