Description
In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-152735806
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Android | Android kernel | — |
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 | 4.14.2-1 | — |
| Debian 13 | linux | 4.14.2-1 | — |
| Debian 12 | linux | 4.14.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +9 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1053.57 | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-179.209 | — |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1107.118 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1013.13~16.04.2 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1014.14~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-24.26~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1071.78 | — |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1133.142 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1137.145 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1034.39 | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1067.71 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-179.209~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | kernel-docs +4 | 4.12.14-197.102.2 | SUSE-SU-2021:3876-1 |
| SLES 15 SP1 | kernel-obs-build | 4.12.14-197.102.1 | SUSE-SU-2021:3876-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.68.1 | SUSE-SU-2021:2644-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.83.1 | SUSE-SU-2021:2647-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.83.2 | SUSE-SU-2021:3972-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.150.1 | SUSE-SU-2021:3935-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_29 | 8-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_30 | 7-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_31 | 4-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_32 +1 | 3-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_34 | 3-2.1 | SUSE-SU-2020:3225-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_35 +3 | 2-2.1 | SUSE-SU-2021:2846-1, SUSE-SU-2021:2026-1, SUSE-SU-2020:3656-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 +1 | 2-2.2 | SUSE-SU-2021:1074-1, SUSE-SU-2021:0835-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 | SUSE-SU-2021:3935-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.161.1 | SUSE-SU-2021:3929-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_33 | 8-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_34 | 5-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_35 | 3-2.2 | SUSE-SU-2020:3225-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_36 | 3-2.1 | SUSE-SU-2020:3225-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_37 +1 | 2-2.1 | SUSE-SU-2020:3648-1, SUSE-SU-2020:3219-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_39 | 2-2.2 | SUSE-SU-2021:0835-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | kernel-docs +3 | 4.12.14-197.102.2 | SUSE-SU-2021:3876-1 |
| SLES for SAP 15 SP1 | kernel-obs-build | 4.12.14-197.102.1 | SUSE-SU-2021:3876-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.68.1 | SUSE-SU-2021:2644-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.83.1 | SUSE-SU-2021:2647-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.83.2 | SUSE-SU-2021:3972-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.150.1 | SUSE-SU-2021:3935-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_29 | 8-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_30 | 7-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_31 | 4-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_32 +1 | 3-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_34 | 3-2.1 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_35 +3 | 2-2.1 | SUSE-SU-2021:2846-1, SUSE-SU-2021:2026-1, SUSE-SU-2020:3656-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 +1 | 2-2.2 | SUSE-SU-2021:1074-1, SUSE-SU-2021:0835-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 | SUSE-SU-2021:3935-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_33 | 8-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_34 | 5-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_35 | 3-2.2 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_36 | 3-2.1 | SUSE-SU-2020:3225-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_37 +1 | 2-2.1 | SUSE-SU-2020:3648-1, SUSE-SU-2020:3219-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_39 | 2-2.2 | SUSE-SU-2021:0835-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.54.1 | SUSE-SU-2021:2643-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.102.2 | SUSE-SU-2021:3876-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_27 | 1-3.3.1 | SUSE-SU-2021:3876-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.83.1 | SUSE-SU-2021:2647-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_22 | 1-8.3.1 | SUSE-SU-2021:2647-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.83.2 | SUSE-SU-2021:3972-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_23 | 1-6.3.1 | SUSE-SU-2021:3972-1 |
| SLE HPC 15 SP1 | kernel-docs +3 | 4.12.14-197.102.2 | SUSE-SU-2021:3876-1 |
| SLE HPC 15 SP1 | kernel-obs-build | 4.12.14-197.102.1 | SUSE-SU-2021:3876-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.83.2 | SUSE-SU-2021:3972-1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.150.1 | SUSE-SU-2021:3935-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 | SUSE-SU-2021:3935-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.83.2 | SUSE-SU-2021:3972-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.150.1 | SUSE-SU-2021:3935-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 | SUSE-SU-2021:3935-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.150.1 | SUSE-SU-2021:3935-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 | SUSE-SU-2021:3935-1 |
| SUSE Enterprise Storage 6 | kernel-docs +3 | 4.12.14-197.102.2 | SUSE-SU-2021:3876-1 |
| SUSE Enterprise Storage 6 | kernel-obs-build | 4.12.14-197.102.1 | SUSE-SU-2021:3876-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | kernel-debug +4 | 4.12.14-197.102.2 | openSUSE-SU-2021:3876-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.54.6.el7uek | ELSA-2021-9442 |
Advisories 17
- SUSE-SU-2020:3225-1 Security update for the Linux Kernel (Live Patch 29 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3929-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3876-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2647-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3935-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2644-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2026-1 Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3656-1 Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3972-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3219-1 Security update for the Linux Kernel (Live Patch 35 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:3876-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1074-1 Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2846-1 Security update for the Linux Kernel (Live Patch 40 for SLE 12 SP3) SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2021:0835-1 Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3) SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2020:3648-1 Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP2) SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2021-9442 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 8, 2021