Description
A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function of the file mm/memory.c of the component Driver Handler. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211020.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | 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 | 6.1.4-1 | — |
| Debian 13 | linux | 6.1.4-1 | — |
| Debian 12 | linux | 6.1.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +31 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime +1 | 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 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-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +21 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.2.0-362.8.1.el9_3 | RHSA-2023:6583 |
| RHEL 9 | rv +64 | 5.14.0-362.8.1.el9_3 | RHSA-2023:6583 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | kernel-64kb +2 | 5.14.21-150400.24.55.2 | SUSE-SU-2023:1710-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.37.1 | SUSE-SU-2023:1608-1, SUSE-SU-2023:0774-1 |
| SLES 15 SP4 | kernel-default +1 | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.55.3.150400.24.22.7 | SUSE-SU-2023:1710-1 |
| SLES 15 SP4 | kernel-docs +1 | 5.14.21-150400.24.55.1 | SUSE-SU-2023:1710-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.55.3.150400.24.22.7 | SUSE-SU-2023:1710-1 |
| SLE Micro 5.4 | kernel-rt | 5.14.21-150400.15.18.1 | SUSE-SU-2023:1609-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.55.3.150400.24.22.7 | SUSE-SU-2023:1710-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.18.1 | SUSE-SU-2023:1609-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_1 | 1-150500.11.5.1 | SUSE-SU-2023:2809-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_4 +1 | 1-150400.1.3.1 | SUSE-SU-2023:1609-1, SUSE-SU-2023:0749-2, SUSE-SU-2023:0749-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_10 | 1-150400.9.3.7 | SUSE-SU-2023:1710-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2023:2809-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.18.1 | SUSE-SU-2023:1609-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2023:2809-1 |
| openSUSE Leap 15.4 | dtb-aarch64 +3 | 5.14.21-150400.24.55.1 | SUSE-SU-2023:1710-1 |
| openSUSE Leap 15.4 | kernel-64kb +2 | 5.14.21-150400.24.55.2 | SUSE-SU-2023:1710-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.37.1 | SUSE-SU-2023:1608-1, SUSE-SU-2023:0774-1 |
| openSUSE Leap 15.4 | kernel-debug +3 | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.55.3.150400.24.22.7 | SUSE-SU-2023:1710-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.18.1 | SUSE-SU-2023:1609-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.55.3 | SUSE-SU-2023:1710-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.55.3.150400.24.22.7 | SUSE-SU-2023:1710-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.18.1 | SUSE-SU-2023:1609-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.2.0-362.8.1.el9_3 | ELSA-2023-6583 |
| Oracle Linux 9 | rv +25 | 5.14.0-362.8.1.el9_3 | ELSA-2023-6583 |
Advisories 12
- RHSA-2023:6583 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SUSE-SU-2023:0774-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1609-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1608-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1710-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0749-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2809-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1293 IBM DataPower Gateway: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 3, 2025
- SUSE-SU-2023:0749-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2023-2023-070 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 10, 2024
- WID-SEC-2022-1741 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 26, 2024
- ELSA-2023-6583 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 12, 2023