CVE-2023-0468

4.7 mediumEPSS 0.3%

Medium (4.7) in linux linux kernel. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.7 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2023-01-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://bugzilla.redhat.com/show_bug.cgi?id=2164024
https://bugzilla.redhat.com/show_bug.cgi?id=2164024

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