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OpenAdvisories

Description

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

VendorProductAffectedFixed
— kernel Linux Kernel 5.17 rc6 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.16.11-1 —
Debian 13 linux 5.16.11-1 —
Debian 12 linux 5.16.11-1 —
Debian 11 linux 5.10.92-2 DSA-5092-1
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS linux-aws-5.13 +1 5.13.0-1017.19~20.04.1 USN-5317-1
Ubuntu 20.04 LTS linux-gcp-5.13 5.13.0-1019.23~20.04.1 USN-5317-1
Ubuntu 20.04 LTS linux-hwe-5.13 5.13.0-35.40~20.04.1 USN-5317-1
Ubuntu 20.04 LTS linux-intel-5.13 5.13.0-1010.10 USN-5362-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1008.11~20.04.1 —
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1027.30 USN-5317-1
Ubuntu 20.04 LTS linux-oracle-5.13 5.13.0-1021.26~20.04.1 USN-5317-1
Ubuntu 20.04 LTS linux-riscv +16 No fix yet —
Ubuntu 18.04 LTS linux-gcp +12 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-348.20.1.rt7.150.el8_5 RHSA-2022:0819
RHEL 8 perf +26 4.18.0-348.20.1.el8_5 RHSA-2022:0825
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhev Hypervisor 4 redhat-virtualization-host +1 4.4.10-202203101736_8.5 RHSA-2022:0841
RHEL 8.4 EUS kernel-rt +12 4.18.0-305.40.2.rt7.113.el8_4 RHSA-2022:0822
RHEL 8.4 EUS perf +26 4.18.0-305.40.2.el8_4 RHSA-2022:0831
RHEL 8.2 EUS kernel-rt +12 4.18.0-193.79.1.rt13.129.el8_2 RHSA-2022:0821
RHEL 8.2 EUS perf +26 4.18.0-193.79.1.el8_2 RHSA-2022:0820
RHEL 8.1 E4S perf +18 4.18.0-147.64.1.el8_1 RHSA-2022:0823

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 kernel-tools-libs-devel 4.18.0-348.20.1.el8_5 ALSA-2022:0825

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-348.20.1.el8_5 RLSA-2022:0825
Rocky Linux 8 kernel-rt 4.18.0-348.20.1.rt7.150.el8_5 RLSA-2022:0819
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.54.1 SUSE-SU-2022:0760-1
SLES 15 SP3 kernel-azure +2 5.3.18-150300.38.47.1 SUSE-SU-2022:0755-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.54.1.150300.18.35.3 SUSE-SU-2022:0760-1
SLES 15 SP2 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SLES 15 SP2 kernel-docs +5 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLES 15 SP1 kernel-docs +5 4.12.14-197.108.1 SUSE-SU-2022:0768-1
SLES 15 kernel-docs +6 4.12.14-150.86.1 SUSE-SU-2022:0766-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.91.1 SUSE-SU-2022:0765-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.113.1 SUSE-SU-2022:0767-1
Show 28 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 kernel-syms +2 4.12.14-95.93.1 SUSE-SU-2022:0757-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-197.108.1 SUSE-SU-2022:0768-1
SLES for SAP 15 kernel-docs +5 4.12.14-150.86.1 SUSE-SU-2022:0766-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.91.1 SUSE-SU-2022:0765-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.113.1 SUSE-SU-2022:0767-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.93.1 SUSE-SU-2022:0757-1
SLE Real Time 15 SP2 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SLE Real Time 15 SP2 kernel-docs +4 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.81.1 SUSE-SU-2022:0761-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.54.1 SUSE-SU-2022:0760-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.54.1.150300.18.35.3 SUSE-SU-2022:0760-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.79.1 SUSE-SU-2022:0763-1
SLE Micro 5.0 kernel-default 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLE Micro 5.0 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SLE Micro 5.0 kernel-rt 5.3.18-76.1 SUSE-SU-2022:0764-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.54.1 SUSE-SU-2022:0760-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_15 1-150300.7.5.1 SUSE-SU-2022:0760-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_25 1-5.5.1 SUSE-SU-2022:0759-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-197.108.1 SUSE-SU-2022:0768-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_29 1-3.3.1 SUSE-SU-2022:0768-1
SLE Live Patching 15 kernel-default 4.12.14-150.86.1 SUSE-SU-2022:0766-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_28 1-1.3.1 SUSE-SU-2022:0766-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.113.1 SUSE-SU-2022:0767-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_29 1-8.3.1 SUSE-SU-2022:0767-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.93.1 SUSE-SU-2022:0757-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_25 1-6.5.1 SUSE-SU-2022:0757-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-197.108.1 SUSE-SU-2022:0768-1
SLE HPC 15 kernel-docs +5 4.12.14-150.86.1 SUSE-SU-2022:0766-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.79.1 SUSE-SU-2022:0763-1
SUSE Real Time Module 15 SP2 kernel-rt +3 5.3.18-76.1 SUSE-SU-2022:0764-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.93.1 SUSE-SU-2022:0757-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.93.1 SUSE-SU-2022:0757-1
SUSE Manager Server 4.1 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SUSE Manager Server 4.1 kernel-docs +5 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SUSE Manager Retail Branch Server 4.1 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SUSE Manager Retail Branch Server 4.1 kernel-docs +4 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SUSE Manager Proxy 4.1 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SUSE Manager Proxy 4.1 kernel-docs +4 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-24.107.1.9.50.2 SUSE-SU-2022:0759-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-24.107.1 SUSE-SU-2022:0759-1
SUSE Enterprise Storage 6 kernel-docs +4 4.12.14-197.108.1 SUSE-SU-2022:0768-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed kernel-source 5.16.14-1.1 openSUSE-SU-2024:13704-1, openSUSE-SU-2024:11910-1
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-150300.59.54.1 openSUSE-SU-2022:0760-1
openSUSE Leap 15.3 kernel-azure +2 5.3.18-150300.38.47.1 openSUSE-SU-2022:0755-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-197.108.1 openSUSE-SU-2022:0768-1, openSUSE-SU-2022:0760-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-150300.59.54.1.150300.18.35.3 openSUSE-SU-2022:0760-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 kernel-livepatch-6.1.10-15.42 1.0-0.amzn2023 ALAS2023-2023-070
Amazon Linux 2023 perf +12 6.1.10-15.42.amzn2023 ALAS2023-2023-070

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.26.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-348.20.1.el8_5 ELSA-2022-0825
Oracle Linux 7 kernel-uek-container 4.14.35-2047.511.5.6.el7 ELSA-2022-9314, ELSA-2022-9245, ELSA-2022-9213
Oracle Linux 7 kernel-uek-container-debug 5.4.17-2136.304.4.5.el8 ELSA-2022-9245, ELSA-2022-9212
Oracle Linux 7 perf +10 4.14.35-2047.511.5.6.el7uek ELSA-2022-9313, ELSA-2022-9244, ELSA-2022-9211

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Exploit-DB 1

GitHub 109 repositories · most starred shown

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 46

References