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OpenAdvisories
High · 8.8 CVE-2023-53305 EUVD-2023-59956GHSA-xw54-m5g5-fqcg

Bluetooth: L2CAP: Fix use-after-free

Published Sep 16, 2025 · Updated Aug 5, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-5.4 Package: linux-intel Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: Fix use-after-free

Fix potential use-after-free in l2cap_le_command_rej.

Affected products

VendorProductAffectedFixed
Linux Linux 3.14 4.14.324

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 6.4.13-1 —
Debian 13 linux 6.4.13-1 —
Debian 12 linux 6.1.52-1 —
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1033.35 —
Ubuntu 24.04 LTS linux-intel +9 No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-91.101 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1051.56 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1053.61 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1053.61.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1048.56 —
Ubuntu 22.04 LTS linux-gke +1 5.15.0-1048.53 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1034.40 —
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1044.47 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1046.52 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1042.42 —
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1020.20 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1007.7 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1049.55 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1027.31 —
Ubuntu 20.04 LTS linux 5.4.0-169.187 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1116.126 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1051.56~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1121.128 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1053.61~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1076.82 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1120.129 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1048.56~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-91.101~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1063.68 —
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1044.47~20.04.1 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1046.52~20.04.1 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1028.29 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1104.111 —
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1020.20~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1115.124 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1049.55~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1100.112 —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1047.51~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1035.39 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1044.46 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1052.58 —
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 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1116.126+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1121.128+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1090.100 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1120.129+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips No fix yet —
Ubuntu Pro 18.04 LTS linux +5 No fix yet —
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1116.126~18.04.1 —
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1121.128~18.04.1 —
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1120.129~18.04.1 —
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-169.187~18.04.1 —
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1063.68~18.04.1 —
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1115.124~18.04.1 —
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1100.112~18.04.1 —
Ubuntu Pro 16.04 LTS linux +7 No fix yet —
Ubuntu Pro 14.04 LTS linux-aws +2 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-553.79.1.rt7.420.el8_10 RHSA-2025:17812
RHEL 8 perf +26 4.18.0-553.79.1.el8_10 RHSA-2025:17797
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhel Extras Rt Els 7 kernel-rt +7 3.10.0-1160.143.1.rt56.1295.el7 RHSA-2025:22914
RHEL 9.2 E4S bpftool 7.0.0-284.146.1.el9_2 RHSA-2025:21051
RHEL 9.2 E4S kernel-rt +14 5.14.0-284.146.1.rt14.431.el9_2 RHSA-2025:21128
RHEL 9.2 E4S perf +47 5.14.0-284.146.1.el9_2 RHSA-2025:21051
RHEL 9.0 E4S kernel-rt +12 5.14.0-70.153.1.rt21.225.el9_0 RHSA-2025:21136
RHEL 9.0 E4S perf +28 5.14.0-70.153.1.el9_0 RHSA-2025:21091
RHEL 8.8 TUS perf +17 4.18.0-477.116.1.el8_8 RHSA-2025:18932
RHEL 8.8 E4S perf +18 4.18.0-477.116.1.el8_8 RHSA-2025:18932
RHEL 8.6 TUS perf +17 4.18.0-372.166.1.el8_6 RHSA-2025:19222
RHEL 8.6 E4S perf +25 4.18.0-372.166.1.el8_6 RHSA-2025:19222
RHEL 8.6 AUS perf +17 4.18.0-372.166.1.el8_6 RHSA-2025:19222
RHEL 8.4 EUS Long Life perf +17 4.18.0-305.179.1.el8_4 RHSA-2025:22752
RHEL 8.4 AUS perf +17 4.18.0-305.179.1.el8_4 RHSA-2025:22752
RHEL 8.2 AUS perf +17 4.18.0-193.178.1.el8_2 RHSA-2025:23445
RHEL 7 ELS perf +18 3.10.0-1160.143.1.el7 RHSA-2025:22910

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 kernel-rt +9 4.18.0-553.79.1.rt7.420.el8_10 ALSA-2025:17812
AlmaLinux 8 perf +24 4.18.0-553.79.1.el8_10 ALSA-2025:17797

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-553.79.1.el8_10 RLSA-2025:17797
Rocky Linux 8 kernel-rt 4.18.0-553.79.1.rt7.420.el8_10 RLSA-2025:17812
ReleasePackageFixed inAdvisory
SLES 15 SP7 kernel-64kb +6 6.4.0-150700.53.22.1 SUSE-SU-2025:4057-1
SLES 15 SP7 kernel-azure +2 6.4.0-150700.20.18.1 SUSE-SU-2025:4132-1
SLES 15 SP7 kernel-default-base 6.4.0-150700.53.22.1.150700.17.15.1 SUSE-SU-2025:4057-1
SLES 15 SP6 kernel-64kb +6 6.4.0-150600.23.73.1 SUSE-SU-2025:03600-1
SLES 15 SP6 kernel-azure +2 6.4.0-150600.8.52.1 SUSE-SU-2025:03634-1
SLES 15 SP6 kernel-default-base 6.4.0-150600.23.73.1.150600.12.32.1 SUSE-SU-2025:03600-1
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.275.1 SUSE-SU-2025:03614-1
Show 18 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 6.1 kernel-default-base 6.4.0-35.1.21.12 SUSE-SU-2025:20861-1
SLE Micro 6.1 kernel-rt +1 6.4.0-37.1 SUSE-SU-2025:20898-1
SLE Micro 6.1 kernel-source +2 6.4.0-35.1 SUSE-SU-2025:20861-1
SLE Micro 6.0 kernel-default-base 6.4.0-35.1.21.12 SUSE-SU-2025:20851-1
SLE Micro 6.0 kernel-rt +1 6.4.0-37.1 SUSE-SU-2025:20870-1
SLE Micro 6.0 kernel-source +2 6.4.0-35.1 SUSE-SU-2025:20851-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.109.1 SUSE-SU-2025:3761-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Live Patching 15 SP7 kernel-default 6.4.0-150700.53.22.1 SUSE-SU-2025:4057-1
SLE Live Patching 15 SP7 kernel-livepatch-SLE15-SP7-RT_Update_6 1-150700.1.3.1 SUSE-SU-2025:4141-1
SLE Live Patching 15 SP7 kernel-livepatch-SLE15-SP7_Update_6 1-150700.15.3.1 SUSE-SU-2025:4057-1
SLE Live Patching 15 SP6 kernel-default 6.4.0-150600.23.73.1 SUSE-SU-2025:03600-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6-RT_Update_16 1-150600.1.3.1 SUSE-SU-2025:3751-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6_Update_16 1-150600.13.3.1 SUSE-SU-2025:03600-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_31 1-150500.11.3.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_45 1-150400.9.3.1 SUSE-SU-2025:03628-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.275.1 SUSE-SU-2025:03614-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_73 1-8.3.1 SUSE-SU-2025:03614-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Real Time Module 15 SP7 kernel-rt +2 6.4.0-150700.7.22.1 SUSE-SU-2025:4141-1
SUSE Real Time Module 15 SP6 kernel-rt +3 6.4.0-150600.10.55.1 SUSE-SU-2025:3751-1
SUSE Manager Server LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Server LTS 4.3 kernel-syms +3 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-syms +2 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.6 dtb-aarch64 +10 6.4.0-150600.23.73.1 SUSE-SU-2025:03600-1
openSUSE Leap 15.6 kernel-azure +2 6.4.0-150600.8.52.1 SUSE-SU-2025:03634-1
openSUSE Leap 15.6 kernel-default-base 6.4.0-150600.23.73.1.150600.12.32.1 SUSE-SU-2025:03600-1
openSUSE Leap 15.6 kernel-rt +3 6.4.0-150600.10.55.1 SUSE-SU-2025:3751-1

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-553.79.1.el8_10 ELSA-2025-17797
Oracle Linux 7 perf +12 3.10.0-1160.119.1.0.15.el7 ELSA-2025-22910

Advisories 35

References