CVE-2023-52926: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: IORING_OP_READ did not correctly consume the provided buffer list when read i/o returned < 0 (except for -EAGAIN and -EIOCBQUEUED return). This can lead to a potential use-after-free when the completion via io_rw_done runs at separate context.

Affected products

• Linux Linux Kernel: from 5.1, before 6.1.122 (fixed in 6.1.122); from 6.2, before 6.6.68 (fixed in 6.6.68)

Published 2025-02-24. Last modified 2026-06-17.