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.
Published 2022-12-23 22:15:09
Updated 2023-01-04 20:06:58
Source MITRE
View at NVD,
Vulnerability category: Memory CorruptionDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2022-47946

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-47946

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source

CWE ids for CVE-2022-47946

  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by: (Primary)

References for CVE-2022-47946

Products affected by CVE-2022-47946

This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to terms of use!