CVE-2022-0847

7.8 highKEVEPSS 93%

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.

Severity

CVSS 3.1

7.8 high

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

EPSS: 93% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2022-04-25, due 2022-05-16
CWE: CWE-665
Published: 2022-03-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fedoraproject:fedora
linux:linux_kernel
netapp:h300e_firmware
netapp:h300s_firmware
netapp:h410c_firmware
netapp:h410s_firmware
netapp:h500e_firmware
netapp:h500s_firmware
netapp:h700e_firmware
netapp:h700s_firmware
ovirt:ovirt-engine
redhat:codeready_linux_builder
redhat:enterprise_linux
redhat:enterprise_linux_eus
redhat:enterprise_linux_for_ibm_z_systems
redhat:enterprise_linux_for_ibm_z_systems_eus
redhat:enterprise_linux_for_power_little_endian
redhat:enterprise_linux_for_power_little_endian_eus
redhat:enterprise_linux_for_real_time
redhat:enterprise_linux_for_real_time_for_nfv
redhat:enterprise_linux_for_real_time_for_nfv_tus
redhat:enterprise_linux_for_real_time_tus
redhat:enterprise_linux_server_aus
redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
redhat:enterprise_linux_server_tus
redhat:enterprise_linux_server_update_services_for_sap_solutions
redhat:virtualization_host
siemens:scalance_lpe9403_firmware
sonicwall:sma1000_firmware

References

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