Description
A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. VDB-211918 is the identifier assigned to this vulnerability.
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 | 6.0.8-1 | — |
| Debian 13 | linux | 6.0.8-1 | — |
| Debian 12 | linux | 6.0.8-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-60.66 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1030.34 | USN-5876-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1033.40 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1033.40.1 | USN-5876-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1029.36 | USN-5876-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1027.32 | USN-5860-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1015.19 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | 5.19.0-32.33~22.04.1 | USN-5879-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1025.28 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1025.30 | USN-5876-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1028.33 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1017.17 | — |
| Ubuntu 22.04 LTS | linux-oem-6.0 | 6.0.0-1008.8 | USN-5780-1 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1029.35 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1024.26 | USN-5851-1 |
| Ubuntu 22.04 LTS | linux-riscv +8 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1030.34~20.04.1 | USN-5876-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1033.40~20.04.1 | USN-5851-1 |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1033.40~20.04.1.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1029.36~20.04.1 | USN-5876-1 |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1027.32~20.04.1 | USN-5877-1 |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1015.19~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-60.66~20.04.1 | USN-5851-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1025.30~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1029.35~20.04.1 | USN-5851-1 |
| Ubuntu 20.04 LTS | linux-riscv +23 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1029.33~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.0.0-284.11.1.el9_2 | RHSA-2023:2458 |
| RHEL 9 | kernel-rt +14 | 5.14.0-284.11.1.rt14.296.el9_2 | RHSA-2023:2148 |
| RHEL 9 | perf +48 | 5.14.0-284.11.1.el9_2 | RHSA-2023:2458 |
| RHEL 8 | kernel-rt +12 | 4.18.0-477.10.1.rt7.274.el8_8 | RHSA-2023:2736 |
| RHEL 8 | perf +26 | 4.18.0-477.10.1.el8_8 | RHSA-2023:2951 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | perf +2 | 4.18.0-372.91.1.el8_6 | RHSA-2024:0724 |
| RHEL 8.6 EUS | perf +26 | 4.18.0-372.91.1.el8_6 | RHSA-2024:0724 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.0.0-284.11.1.el9_2 | ALSA-2023:2458 |
| AlmaLinux 9 | kernel-rt +13 | 5.14.0-284.11.1.rt14.296.el9_2 | ALSA-2023:2148 |
| AlmaLinux 9 | perf +45 | 5.14.0-284.11.1.el9_2 | ALSA-2023:2458 |
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-477.10.1.rt7.274.el8_8 | ALSA-2023:2736 |
| AlmaLinux 8 | perf +23 | 4.18.0-477.10.1.el8_8 | ALSA-2023:2951 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES 15 SP4 | kernel-64kb +3 | 5.14.21-150400.24.33.2 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLES 15 SP4 | kernel-azure | 5.14.21-150400.14.21.2 | SUSE-SU-2022:3998-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.33.2.150400.24.11.4 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLES 15 SP4 | kernel-syms +2 | 5.14.21-150400.24.33.1 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLES 15 SP4 | kernel-syms-azure +1 | 5.14.21-150400.14.21.1 | SUSE-SU-2022:3998-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.97.1 | SUSE-SU-2025:01966-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.33.2 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.33.2.150400.24.11.4 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.121.1 | SUSE-SU-2025:01918-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_27 | 1-150500.11.7.1 | SUSE-SU-2025:02173-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.33.2 | SUSE-SU-2025:02262-1, SUSE-SU-2022:4072-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_1 | 1-150400.1.3.1 | SUSE-SU-2022:4617-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_41 | 1-150400.9.3.1 | SUSE-SU-2025:02262-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_5 | 1-150400.9.3.4 | SUSE-SU-2022:4072-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.110.1 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.110.1.150500.6.51.3 | SUSE-SU-2025:02173-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.5.1 | SUSE-SU-2022:4617-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Server 4.3 | kernel-syms +3 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.167.1.150400.24.84.1 | SUSE-SU-2025:02262-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +2 | 5.14.21-150400.24.167.1 | SUSE-SU-2025:02262-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 +4 | 5.14.21-150400.24.33.1 | SUSE-SU-2022:4072-1 |
| openSUSE Leap 15.4 | kernel-64kb +5 | 5.14.21-150400.24.33.2 | SUSE-SU-2022:4072-1 |
| openSUSE Leap 15.4 | kernel-azure | 5.14.21-150400.14.21.2 | SUSE-SU-2022:3998-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.33.2.150400.24.11.4 | SUSE-SU-2022:4072-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.5.1 | SUSE-SU-2022:4617-1 |
| openSUSE Leap 15.4 | kernel-syms-azure +1 | 5.14.21-150400.14.21.1 | SUSE-SU-2022:3998-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.0.0-284.11.1.el9_2 | ELSA-2023-2458 |
| Oracle Linux 9 | perf +25 | 5.14.0-284.11.1.el9_2 | ELSA-2023-2458 |
| Oracle Linux 8 | perf +19 | 4.18.0-477.10.1.el8_8 | ELSA-2023-2951 |
Advisories 26
- ALSA-2023:2458 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2148 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2951 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2736 Important: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- USN-5876-1 linux-aws, linux-aws-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5851-1 linux, linux-azure, linux-azure-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5879-1 linux-hwe-5.19 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5877-1 linux-gke-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5780-1 linux-oem-6.0 vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5860-1 linux-gke vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- RHSA-2023:2951 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:2458 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:0724 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:2736 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:2148 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SUSE-SU-2025:02262-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01918-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02173-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:01966-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4072-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4617-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3998-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1812 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2025
- WID-SEC-2024-0064 Juniper Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 10, 2025
- ELSA-2023-2951 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2023
- ELSA-2023-2458 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 15, 2023