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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49136Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set

High 7.8

In plain English

A high-severity use-after-free in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 82.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set hci_cmd_sync_queue shall return an error if HCI_UNREGISTER flag has been set as that means hci_unregister_dev has been called so it will likely cause a uaf after the timeout as the hdev will be freed.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-abi-stablelists4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-core4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-cross-headers4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-debug4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-debug-core4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-debug-devel4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-debug-modules4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-devel4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-doc4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-headers4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-modules4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-modules-extra4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-rt4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-core4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-debug4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-debug-core4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-devel4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-modules4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.60.1.rt7.401.el8_10ALSA-2025:10670
AlmaLinux:8kernel-tools4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-tools-libs4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-zfcpdump4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8perf4.18.0-553.60.1.el8_10ALSA-2025:10669
AlmaLinux:8python3-perf4.18.0-553.60.1.el8_10ALSA-2025:10669
Debian:12linux5.17.3-1DEBIAN-CVE-2022-49136
Debian:13linux5.17.3-1DEBIAN-CVE-2022-49136
Debian:14linux5.17.3-1DEBIAN-CVE-2022-49136
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49136
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49136

Affected products (as reported)

VendorProductVersions
Linux Linux 6a98e3836fa2077b169f10a35c2ca9952d53f987 – before 1c69ef84a808676cceb69210addf5df45b7413236a98e3836fa2077b169f10a35c2ca9952d53f987 – before 0b94f2651f56b9e4aa5f012b0d7eb57308c773cf
Linux Linux 5.17

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References