🛡️ CVE-2023-0468
🟡 CVSS 4.7 — Medium ⚠️ Exploit Public CWE-416 NVD
4.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference.

Details

Severity MEDIUM
CVSS Score 4.7
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-416
Public Exploit ⚠️ Yes
Source NVD
Published 2023-01-26
Updated 2026-06-08
Modified 2025-04-01

Affected Packages

Software From version Fixed in
linux-kernel

References

Exploit, Issue Tracking, Patch, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2164024
Exploit, Issue Tracking, Patch, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2164024

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