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High · 8.8 CVE-2024-26801 EUVD-2024-24063GHSA-2252-87pv-34g4

Bluetooth: Avoid potential use-after-free in hci_error_reset

Published Apr 4, 2024 · 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-6.2 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-6.2 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-6.2 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-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-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-6.5 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: Avoid potential use-after-free in hci_error_reset

While handling the HCI_EV_HARDWARE_ERROR event, if the underlying
BT controller is not responding, the GPIO reset mechanism would
free the hci_dev and lead to a use-after-free in hci_error_reset.

Here's the call trace observed on a ChromeOS device with Intel AX201:
queue_work_on+0x3e/0x6c
__hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]
? init_wait_entry+0x31/0x31
__hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]
hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]
process_one_work+0x1d8/0x33f
worker_thread+0x21b/0x373
kthread+0x13a/0x152
? pr_cont_work+0x54/0x54
? kthread_blkcg+0x31/0x31
ret_from_fork+0x1f/0x30

This patch holds the reference count on the hci_dev while processing
a HCI_EV_HARDWARE_ERROR event to avoid potential crash.

Affected products

VendorProductAffectedFixed
Linux Linux 4.0 4.19.309

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 6.7.9-1 —
Debian 13 linux 6.7.9-1 —
Debian 12 linux 6.1.82-1 —
Debian 11 linux 5.10.216-1 DSA-5681-1
Debian 10 linux 4.19.316-1 DLA-3840-1
Debian 10 linux-5.10 5.10.216-1~deb10u1 DLA-3842-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1044.46 —
Ubuntu 22.04 LTS linux 5.15.0-112.122 USN-6820-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1063.69 USN-6821-3
Ubuntu 22.04 LTS linux-aws-6.5 +1 6.5.0-1020.20~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1066.75 USN-6821-4
Ubuntu 22.04 LTS linux-azure-6.5 6.5.0-1021.22~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1067.76.1 USN-6821-4
Ubuntu 22.04 LTS linux-gcp 5.15.0-1062.70 USN-6820-1
Ubuntu 22.04 LTS linux-gke 5.15.0-1060.66 USN-6821-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1046.53 USN-6821-2
Ubuntu 22.04 LTS linux-hwe-6.5 6.5.0-35.35~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-ibm 5.15.0-1056.59 USN-6821-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1058.64 USN-6821-1
Ubuntu 22.04 LTS linux-kvm 5.15.0-1060.65 USN-6821-2
Ubuntu 22.04 LTS linux-lowlatency 5.15.0-110.120 USN-6820-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1058.59 USN-6820-2
Ubuntu 22.04 LTS linux-nvidia-6.5 6.5.0-1019.19 USN-6774-1
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1026.26 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1015.15 —
Ubuntu 22.04 LTS linux-oem-6.5 6.5.0-1023.24 USN-6774-1
Ubuntu 22.04 LTS linux-oracle 5.15.0-1061.67 USN-6821-1
Ubuntu 22.04 LTS linux-oracle-6.5 6.5.0-1023.23~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-raspi 5.15.0-1058.61 USN-6919-1
Ubuntu 22.04 LTS linux-riscv +21 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.5 +1 6.5.0-35.35.1~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-starfive-6.5 6.5.0-1014.15~22.04.1 USN-6774-1
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1030.34 USN-6820-1
Ubuntu 20.04 LTS linux 5.4.0-186.206 USN-6831-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1126.136 USN-6831-1
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1063.69~20.04.1 USN-6821-3
Ubuntu 20.04 LTS linux-azure 5.4.0-1131.138 USN-6831-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1065.74~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1086.93 USN-6867-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1130.139 USN-6831-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1062.70~20.04.1 USN-6820-1
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1093.97 USN-6831-1
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1046.53~20.04.1 USN-6821-2
Ubuntu 20.04 LTS linux-hwe-5.15 5.15.0-113.123~20.04.1 USN-6871-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1073.78 USN-6831-1
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1057.60~20.04.1 USN-6892-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1058.64~20.04.1 USN-6828-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1038.39 USN-6867-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1114.121 USN-6831-1
Ubuntu 20.04 LTS linux-lowlatency-hwe-5.15 5.15.0-110.120~20.04.1 USN-6820-1
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1027.27~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1125.134 USN-6831-1
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1061.67~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1110.122 USN-6831-1
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1059.63~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1045.49 USN-6831-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2002.2 —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1056.58 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1064.72 —
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 22.04 LTS linux-aws-fips 5.15.0-1063.69+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-azure-fips 5.15.0-1065.74+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-111.121+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1062.70+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1126.136+fips2 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1131.138+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1100.110 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1130.139+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2107.113 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2086.92 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1123.134 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2070.75 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1101.108 —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro 18.04 LTS linux 4.15.0-225.237 USN-6777-1
Ubuntu Pro 18.04 LTS linux-aws 4.15.0-1168.181 USN-6777-1
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1126.136~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-azure-4.15 4.15.0-1177.192 USN-6777-1
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1131.138~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-gcp-4.15 4.15.0-1162.179 USN-6777-1
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1130.139~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-186.206~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1073.78~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-kvm 4.15.0-1152.157 USN-6777-1
Ubuntu Pro 18.04 LTS linux-oracle 4.15.0-1131.142 USN-6777-1
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1125.134~18.04.1 USN-6831-1
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1110.122~18.04.1 USN-6831-1
Ubuntu Pro 16.04 LTS linux 4.4.0-254.288 USN-6778-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1169.184 USN-6778-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1168.181~16.04.1 USN-6777-4
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1177.192~16.04.1 USN-6777-2
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1162.179~16.04.1 USN-6777-3
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-225.237~16.04.1 USN-6777-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1132.142 USN-6778-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1131.142~16.04.1 USN-6777-1
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1131.137 USN-6778-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1177.192~14.04.1 USN-6777-2
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-254.288~14.04.1 USN-6778-1
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.3.0-427.24.1.el9_4 RHSA-2024:4349
RHEL 9 rv +64 5.14.0-427.24.1.el9_4 RHSA-2024:4349
RHEL 8 kernel-rt +12 4.18.0-553.8.1.rt7.349.el8_10 RHSA-2024:4352
RHEL 8 perf +26 4.18.0-553.8.1.el8_10 RHSA-2024:4211
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.2 EUS bpftool 7.0.0-284.73.1.el9_2 RHSA-2024:4533
RHEL 9.2 EUS kernel-rt +14 5.14.0-284.73.1.rt14.358.el9_2 RHSA-2024:4554
RHEL 9.2 EUS perf +47 5.14.0-284.73.1.el9_2 RHSA-2024:4533
RHEL 8.8 EUS perf +26 4.18.0-477.64.1.el8_8 RHSA-2024:4740
RHEL 8.6 TUS perf +17 4.18.0-372.111.1.el8_6 RHSA-2024:4447
RHEL 8.6 E4S perf +25 4.18.0-372.111.1.el8_6 RHSA-2024:4447
RHEL 8.6 AUS perf +17 4.18.0-372.111.1.el8_6 RHSA-2024:4447

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 bpftool 7.3.0-427.24.1.el9_4 ALSA-2024:4349
AlmaLinux 9 rv +60 5.14.0-427.24.1.el9_4 ALSA-2024:4349
AlmaLinux 8 kernel-rt +11 4.18.0-553.8.1.rt7.349.el8_10 ALSA-2024:4352
AlmaLinux 8 perf +24 4.18.0-553.8.1.el8_10 ALSA-2024:4211

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 kernel 5.14.0-427.24.1.el9_4 RXSA-2024:4349, RLSA-2024:4349
Rocky Linux 8 kernel 4.18.0-553.8.1.el8_10 RLSA-2024:4211
Rocky Linux 8 kernel-rt 4.18.0-553.8.1.rt7.349.el8_10 RLSA-2024:4352
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.57.1 SUSE-SU-2024:2019-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.237.1 SUSE-SU-2025:0035-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLE Micro 5.5 kernel-default 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_15 +1 1-150500.11.3.1 SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.237.1 SUSE-SU-2024:4367-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_63 1-8.3.1 SUSE-SU-2024:4367-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.68.1 SUSE-SU-2024:2190-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.57.1 SUSE-SU-2024:2019-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.68.1.150500.6.31.1 SUSE-SU-2024:2190-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.58.1 SUSE-SU-2024:2008-1

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 bpftool 7.3.0-427.24.1.el9_4 ELSA-2024-4349
Oracle Linux 9 rv +27 5.14.0-427.24.1.el9_4 ELSA-2024-4349
Oracle Linux 8 perf +19 4.18.0-553.8.1.el8_10 ELSA-2024-4211
Oracle Linux 7 kernel-uek +5 4.1.12-124.89.4.el7uek ELSA-2024-12606

Advisories 47

References