CVE-2022-1786: Linux Kernel

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

Affected products

• Linux Linux Kernel: from 5.10, before 5.12 (fixed in 5.12)
• Netapp h300s Firmware: affected versions not specified
• Netapp h410c Firmware: affected versions not specified
• Netapp h410s Firmware: affected versions not specified
• Netapp h500s Firmware: affected versions not specified
• Netapp h700s Firmware: affected versions not specified

Published 2022-06-02. Last modified 2026-06-17.