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OpenAdvisories
High · 7.8 CVE-2024-56604 EUVD-2024-53252GHSA-3h24-5m24-pxvw

Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()

Published Dec 27, 2024 · Updated Aug 5, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: kernel 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-6.8 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-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.15 Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-azure-nvidia 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-6.8 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-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-5.4 Package: linux-ibm-6.8 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-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.11 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency 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-oracle-6.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.8 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-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()

bt_sock_alloc() attaches allocated sk object to the provided sock object.
If rfcomm_dlc_alloc() fails, we release the sk object, but leave the
dangling pointer in the sock object, which may cause use-after-free.

Fix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc().

Affected products

VendorProductAffectedFixed
Linux Linux 2.6.12 6.1.120

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 6.12.5-1 —
Debian 13 linux 6.12.5-1 —
Debian 12 linux 6.1.123-1 —
Debian 11 linux-6.1 6.1.128-1~deb11u1 DLA-4076-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield No fix yet —
Ubuntu 24.04 LTS linux 6.8.0-58.60 USN-7449-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1027.29 USN-7449-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1027.32 USN-7449-1
Ubuntu 24.04 LTS linux-azure-6.11 6.11.0-1012.12~24.04.1 —
Ubuntu 24.04 LTS linux-azure-nvidia 6.8.0-1014.15 USN-7468-1
Ubuntu 24.04 LTS linux-gcp 6.8.0-1028.30 USN-7450-1
Ubuntu 24.04 LTS linux-gcp-6.11 6.11.0-1011.11~24.04.1 —
Ubuntu 24.04 LTS linux-gke 6.8.0-1023.27 USN-7450-1
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1010.12 USN-7450-1
Ubuntu 24.04 LTS linux-hwe-6.11 6.11.0-21.21~24.04.1 USN-7379-1
Ubuntu 24.04 LTS linux-ibm 6.8.0-1024.24 USN-7449-1
Ubuntu 24.04 LTS linux-lowlatency-hwe-6.11 6.11.0-1011.12~24.04.1 USN-7381-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1026.29 USN-7449-1
Ubuntu 24.04 LTS linux-nvidia-6.11 6.11.0-1007.7 —
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1026.29.1 USN-7449-1
Ubuntu 24.04 LTS linux-nvidia-tegra 6.8.0-1008.8 —
Ubuntu 24.04 LTS linux-oem-6.11 6.11.0-1017.17 USN-7382-1
Ubuntu 24.04 LTS linux-oem-6.8 6.8.0-1026.26 USN-7449-1
Ubuntu 24.04 LTS linux-oracle 6.8.0-1024.25 USN-7449-1
Ubuntu 24.04 LTS linux-raspi 6.8.0-1028.32 USN-7524-1
Ubuntu 24.04 LTS linux-realtime +1 No fix yet —
Ubuntu 24.04 LTS linux-riscv +1 6.8.0-58.60.1 USN-7449-1
Ubuntu 24.04 LTS linux-xilinx 6.8.0-1017.18 —
Ubuntu 22.04 LTS linux +49 No fix yet —
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1027.29~22.04.1 USN-7451-1
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1027.32~22.04.1 USN-7449-1
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1028.30~22.04.1 USN-7452-1
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-58.60~22.04.1 USN-7449-2
Ubuntu 22.04 LTS linux-ibm-6.8 6.8.0-1024.24~22.04.1 —
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1026.29~22.04.1 USN-7449-1
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1024.25~22.04.1 USN-7449-1
Ubuntu 22.04 LTS linux-riscv-6.8 +1 6.8.0-58.60.1~22.04.1 USN-7449-1
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 16 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2023.24 USN-7523-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1020.21 USN-7453-1
Ubuntu Pro Realtime 22.04 LTS linux-realtime +1 No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1020.21~22.04.1 —
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 24.04 LTS linux-fips 6.8.0-78.78+fips1 —
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-updates 16.04 LTS linux-fips 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 +7 No fix yet —
Ubuntu Pro 14.04 LTS linux +3 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 rv +77 5.14.0-570.12.1.el9_6 RHSA-2025:6966
ReleasePackageFixed inAdvisory
SLES 15 SP6 kernel-64kb +6 6.4.0-150600.23.33.1 SUSE-SU-2025:0154-1
SLES 15 SP6 kernel-azure +2 6.4.0-150600.8.23.1 SUSE-SU-2025:0117-1
SLES 15 SP6 kernel-coco +3 6.4.0-15061.12.coco15sp6.1 SUSE-SU-2025:0289-1
SLES 15 SP6 kernel-default-base 6.4.0-150600.23.33.1.150600.12.14.1 SUSE-SU-2025:0154-1
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.91.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.91.1.150500.6.41.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.244.1 SUSE-SU-2025:0236-1
Show 23 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 11 SP4 kernel-ec2 +5 3.0.101-108.174.1 SUSE-SU-2025:0152-1
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.91.1.150500.6.41.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.91.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLE Micro 6.1 kernel-default-base 6.4.0-24.1.21.4 SUSE-SU-2025:20248-1
SLE Micro 6.1 kernel-livepatch-MICRO-6-0-RT_Update_5 1-1.1 SUSE-SU-2025:20249-1
SLE Micro 6.1 kernel-livepatch-MICRO-6-0_Update_5 1-1.2 SUSE-SU-2025:20248-1
SLE Micro 6.1 kernel-rt +4 6.4.0-25.1 SUSE-SU-2025:20249-1, SUSE-SU-2025:20248-1
SLE Micro 6.0 kernel-default-base 6.4.0-24.1.21.4 SUSE-SU-2025:20165-1
SLE Micro 6.0 kernel-livepatch-MICRO-6-0-RT_Update_5 1-1.1 SUSE-SU-2025:20166-1
SLE Micro 6.0 kernel-livepatch-MICRO-6-0_Update_5 1-1.2 SUSE-SU-2025:20165-1
SLE Micro 6.0 kernel-rt +4 6.4.0-25.1 SUSE-SU-2025:20166-1, SUSE-SU-2025:20165-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.91.1 SUSE-SU-2025:0201-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.91.1.150500.6.41.1 SUSE-SU-2025:0201-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.82.1 SUSE-SU-2025:0229-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.106.1 SUSE-SU-2025:0231-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.106.1 SUSE-SU-2025:0231-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.197.1 SUSE-SU-2025:0230-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.197.1 SUSE-SU-2025:0230-1
SLE Live Patching 15 SP6 kernel-default 6.4.0-150600.23.33.1 SUSE-SU-2025:0154-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6-RT_Update_7 1-150600.1.3.1 SUSE-SU-2025:0153-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6_Update_7 1-150600.13.3.1 SUSE-SU-2025:0154-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.91.1 SUSE-SU-2025:0201-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_22 1-150500.11.3.1 SUSE-SU-2025:0201-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_35 1-150400.9.3.1 SUSE-SU-2025:0203-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_52 1-150300.7.3.1 SUSE-SU-2025:0202-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.244.1 SUSE-SU-2025:0236-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_64 1-8.5.1 SUSE-SU-2025:0236-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.91.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.91.1.150500.6.41.1 SUSE-SU-2025:0201-2, SUSE-SU-2025:0201-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
SUSE Real Time Module 15 SP6 kernel-rt +3 6.4.0-150600.10.23.1 SUSE-SU-2025:0153-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SUSE Manager Server 4.3 kernel-syms +3 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.147.1.150400.24.72.1 SUSE-SU-2025:0203-1
SUSE Manager Proxy 4.3 kernel-syms +2 5.14.21-150400.24.147.1 SUSE-SU-2025:0203-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.188.1 SUSE-SU-2025:0202-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.188.1.150300.18.111.1 SUSE-SU-2025:0202-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.6 dtb-aarch64 +10 6.4.0-150600.23.33.1 SUSE-SU-2025:0154-1
openSUSE Leap 15.6 kernel-azure +2 6.4.0-150600.8.23.1 SUSE-SU-2025:0117-1
openSUSE Leap 15.6 kernel-default-base 6.4.0-150600.23.33.1.150600.12.14.1 SUSE-SU-2025:0154-1
openSUSE Leap 15.6 kernel-rt +3 6.4.0-150600.10.23.1 SUSE-SU-2025:0153-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 kernel 6.6.76.1-1 —
Azure Linux 2 (CBL-Mariner) kernel No fix yet —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 bpftool 7.5.0-802.el9_6 ELSA-2025-6966
Oracle Linux 9 kernel-uek +34 6.12.0-101.33.4.3.el10uek ELSA-2025-20530, ELSA-2025-20480
Oracle Linux 9 rv +28 5.14.0-570.12.1.0.1.el9_6 ELSA-2025-6966

Advisories 35

References