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CVE-2022-0847

HIGH7.8Published on March 10, 2022

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.

Actively exploited

  • In the CISA exploited-vulnerabilities catalogue since Apr 25, 2022
  • US federal agencies must remediate it by May 16, 2022 (BOD 22-01)
  • First attack observed 45 days after disclosure
  • Used in ransomware campaigns

Apply updates per vendor instructions.

Source: CISA KEV · Aug 20, 2026 Mar 6, 2026 Dec 3, 2025 Aug 27, 2025 May 30, 2025 Feb 26, 2025

CVSS score7.8 / 10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)CWE-665, CWE-665
Vendorsredhat, netapp, linux, fedoraproject, ovirt

Affected products

VendorsProdottoVersioni
linuxlinux kernel< 5.10.102
fedoraprojectfedora35
redhatenterprise linux8.0
redhatenterprise linux eus8.2
redhatenterprise linux for ibm z systems8.0
redhatenterprise linux for ibm z systems eus8.2
redhatenterprise linux for power little endian8.0
redhatenterprise linux for power little endian eus8.2
redhatenterprise linux for real time8
redhatenterprise linux for real time for nfv8
redhatenterprise linux for real time for nfv tus8.2
redhatenterprise linux for real time tus8.2
redhatenterprise linux server aus8.2
redhatenterprise linux server for power little endian update services for sap solutions8.1
redhatenterprise linux server tus8.2
redhatenterprise linux server update services for sap solutions8.1
redhatcodeready linux builder-
redhatvirtualization host4.0
ovirtovirt-engine4.4.10.2
netapph300s firmware-
netapph300s-
netapph500s firmware-
netapph500s-
netapph700s firmware-
netapph700s-

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This product uses the NVD API but is not endorsed or certified by the NVD.

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