CVE-2022-0847: Linux Kernel Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-04-25. EPSS: 92.8% chance of exploitation in the next 30 days.

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Affected products

  • Fedoraproject Fedora: version 35 only
  • Linux Linux Kernel: from 5.8, before 5.10.102 (fixed in 5.10.102); from 5.15, before 5.15.25 (fixed in 5.15.25); from 5.16, before 5.16.11 (fixed in 5.16.11)
  • Netapp h300e Firmware: affected versions not specified
  • Netapp h300s Firmware: affected versions not specified
  • Netapp h410c Firmware: affected versions not specified
  • Netapp h410s Firmware: affected versions not specified
  • Netapp h500e Firmware: affected versions not specified
  • Netapp h500s Firmware: affected versions not specified
  • Netapp h700e Firmware: affected versions not specified
  • Netapp h700s Firmware: affected versions not specified
  • Ovirt Ovirt-Engine: version 4.4.10.2 only
  • Red Hat Codeready Linux Builder: affected versions not specified
  • Red Hat Enterprise Linux: version 8.0 only
  • Red Hat Enterprise Linux Eus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux For IBM Z Systems: version 8.0 only
  • Red Hat Enterprise Linux For IBM Z Systems Eus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux For Power Little Endian: version 8.0 only
  • Red Hat Enterprise Linux For Power Little Endian Eus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux For Real Time: version 8 only
  • Red Hat Enterprise Linux For Real Time For Nfv: version 8 only
  • Red Hat Enterprise Linux For Real Time For Nfv Tus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux For Real Time Tus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux Server Aus: version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux Server For Power Little Endian Update Services For SAP Solutions: version 8.1 only; version 8.2 only; version 8.4 only
  • Red Hat Enterprise Linux Server Tus: version 8.2 only; version 8.4 only
  • and 4 more

Published 2022-03-10. Last modified 2026-06-17.