Description
A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Kernel | Kernel versions before 5.7.10 | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 5.7.10-1 | — |
| Debian 13 | linux | 5.7.10-1 | — |
| Debian 12 | linux | 5.7.10-1 | — |
| Debian 9 | linux | 4.9.240-1 | DLA-2420-1 |
| Debian 9 | linux-4.19 | 4.19.146-1~deb9u1 | DLA-2385-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 26.10 | linux-realtime +1 | No fix yet | — |
| Ubuntu 26.04 LTS | linux-gke +6 | No fix yet | — |
| Ubuntu 25.10 | linux-realtime +1 | No fix yet | — |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux +30 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +29 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-45.49 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-aws +2 | 5.4.0-1022.22 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1023.23 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1021.21 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1021.21 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1016.17 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-riscv | 5.4.0-31.35 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-118.119 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1083.87 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-aws-5.3 +1 | 5.3.0-1034.36 | USN-4484-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 +2 | 5.4.0-1022.22~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1096.106 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1023.23~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-gcp +9 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1084.95 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1070.73 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-hwe | 5.3.0-66.60 | USN-4484-1 |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-45.49~18.04.2 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1075.76 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1097.107 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1054.58 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1016.17~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1071.75 | USN-4526-1 |
| Ubuntu 18.04 LTS | linux-raspi2-5.3 | 5.3.0-1032.34 | USN-4484-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1087.95 | USN-4526-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1083.87~16.04.1 | USN-4526-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1096.106~16.04.1 | USN-4526-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1084.95~16.04.1 | USN-4526-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-118.119~16.04.1 | USN-4526-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1054.58~16.04.1 | USN-4526-1 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime +3 | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime +2 | No fix yet | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2027.27 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2009.10 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1041.46 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +20 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 +6 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1096.106~14.04.1 | USN-4526-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-305.rt7.72.el8 | RHSA-2021:1739 |
| RHEL 8 | perf +26 | 4.18.0-305.el8 | RHSA-2021:1578 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-tools-libs-devel | 4.18.0-305.el8 | ALSA-2021:1578 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | kernel-azure +2 | 5.3.18-18.15.1 | SUSE-SU-2020:2485-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.12.1.9.4.1 | SUSE-SU-2020:2486-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-24.12.1 | SUSE-SU-2020:2486-1 |
| SLES 15 SP1 | kernel-azure +2 | 4.12.14-8.41.1 | SUSE-SU-2020:2541-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.56.1 | SUSE-SU-2020:2575-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.25.1 | SUSE-SU-2020:2540-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.25.1 | SUSE-SU-2020:2540-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.16.1 | SUSE-SU-2020:2605-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.12.1 | SUSE-SU-2020:2486-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_2 | 1-5.3.1 | SUSE-SU-2020:2486-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.56.1 | SUSE-SU-2020:2575-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_15 | 1-3.3.2 | SUSE-SU-2020:2575-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_20 | 1-1.3.1 | SUSE-SU-2020:2610-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_9 | 1-8.5.1 | SUSE-SU-2020:2574-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_16 | 1-6.3.1 | SUSE-SU-2020:2623-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.31.1 | SUSE-SU-2020:2631-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | bbswitch | 0.8-lp152.6.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | crash | 7.2.8-lp152.3.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | dpdk | 19.11.1-lp152.2.5.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | drbd | 9.0.22~1+git.fe2b5983-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | hdjmod | 1.28-lp152.6.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | kernel-docs +8 | 5.3.18-lp152.36.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | kernel-rt +3 | 5.3.18-lp152.3.5.1 | openSUSE-SU-2021:0242-1 |
| openSUSE Leap 15.2 | mhvtl | 1.62-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | openafs | 1.8.5-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | pcfclock | 0.44-lp152.4.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | rtl8812au | 5.6.4.2+git20200318.49e98ff-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | sysdig | 0.26.5-lp152.3.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | v4l2loopback | 0.12.5-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | vhba-kmp | 20200106-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | virtualbox | 6.1.10-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.2 | xtables-addons | 3.9-lp152.2.2.1 | openSUSE-SU-2020:1236-1 |
| openSUSE Leap 15.1 | kernel-docs +8 | 4.12.14-lp151.28.63.1 | openSUSE-SU-2020:1325-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.192-147.314 | 1.0-0.amzn2 | ALAS2-2020-1480 |
| Amazon Linux 2 | perf +8 | 4.14.192-147.314.amzn2 | ALAS2-2020-1480 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-305.el8 | ELSA-2021-1578 |
| Oracle Linux 7 | perf +10 | 4.14.35-2025.402.2.1.el7uek | ELSA-2020-5913, ELSA-2020-5884 |
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.
GitHub 1 repository
-
ShaikUsaf/linux-4.19.72_CVE-2020-14356 ★ 0 · Apr 23, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 25
- ALSA-2021:1578 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:1739 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2021:1578 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-4526-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4483-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4484-1 linux-hwe, linux-aws-5.3, linux-gke-5.3, linux-raspi2-5.3 vulnerability Ubuntu Security Notices (USN) · Jun 3, 2026
- DLA-2385-1 linux-4.19 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2420-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:0242-1 Security update for RT kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2605-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1236-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2540-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2631-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2575-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2485-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2486-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1325-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2610-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2623-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2541-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2574-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2020-1480 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 19, 2024
- ELSA-2021-1578 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ELSA-2020-5913 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020
- ELSA-2020-5884 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 12, 2020
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1868453
- https://bugzilla.kernel.org/show_bug.cgi?id=208003
- https://lore.kernel.org/netdev/CAM_iQpUKQJrj8wE+Qa8NGR3P0L+5Uz=qo-O5+k_P60HzTde6aw%40mail.gmail.com/t/
- openSUSE-SU-2020:1236 vendor-advisory
- openSUSE-SU-2020:1325 vendor-advisory
- https://security.netapp.com/advisory/ntap-20200904-0002/
- USN-4484-1 vendor-advisory
- USN-4483-1 vendor-advisory
- USN-4526-1 vendor-advisory
- [debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update mailing-list
- [debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update mailing-list
- [debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update mailing-list