CVE-2021-4023 in Kernel
Summary
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.
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Reservation
11/25/2021
Disclosure
03/10/2022
Status
Confirmed
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 194501 | Linux Kernel Operation Trigger denial of service | 404 | Not defined | Official fix | CVE-2021-4023 |