In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: validate skb length for unknown CC opcode
In hci_cmd_complete_evt(), if the command complete event has an unknown opcode, we assume the first byte of the remaining skb->data contains the return status. However, parameter data has previously been pulled in hci_event_func(), which may leave the skb empty. If so, using skb->data[0] for the return status uses un-init memory.
The fix is to check skb->len before using skb->data.
CVSS Details
- CVSS 3.1 Base Score: 7.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jan 12, 2026 | Jan 12, 2026 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Jan 15, 2026 | Dec 8, 2025 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Feb 3, 2026 | Dec 8, 2025 |
| Rocky_linux | — | Upgrade kernel-modules-coreUpgrade kernel-rt-debug-modulesUpgrade rtlaUpgrade perf-debuginfoUpgrade kernel-debugUpgrade kernel-devel-matchedUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-develUpgrade kernel-debug-coreUpgrade kernel-tools-debuginfoUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade libperfUpgrade kernel-develUpgrade kernel-debug-debuginfoUpgrade kernel-debug-modules-coreUpgrade kernel-debuginfoUpgrade kernel-coreUpgrade perfUpgrade kernel-modules-extra-matchedUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdumpUpgrade kernel-rt-coreUpgrade kernel-debug-develUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rtUpgrade kernelUpgrade kernel-debug-devel-matchedUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-zfcpdump-coreUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfo-common-s390xUpgrade python3-perfUpgrade kernel-rt-modules-extraUpgrade libperf-debuginfoUpgrade kernel-tools-libsUpgrade python3-perf-debuginfoUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-debugUpgrade rvUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modules-extraUpgrade kernel-uki-virt-addonsUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-toolsUpgrade kernel-rt-develUpgrade kernel-tools-libs-develUpgrade kernel-rt-debug-debuginfo | Feb 9, 2026 | Feb 8, 2026 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-oem-22.04Upgrade linux-image-raspiUpgrade linux-image-oem-22.04cUpgrade linux-image-azure-6.8Upgrade linux-image-aws-6.17Upgrade linux-image-gkeUpgrade linux-image-nvidia-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-genericUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-fipsUpgrade linux-image-aws-6.8Upgrade linux-image-6.17.0-1008-azureUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-nvidiaUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-gkeopUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-aws-fipsUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-virtual-6.17Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-ibmUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-aws-64kUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gke-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-azureUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-6.17Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-azure-6.17Upgrade linux-image-generic-lpaeUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-generic-64k-6.17Upgrade linux-image-azure-fips-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-106-fipsUpgrade linux-image-oracle-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-xilinxUpgrade linux-image-raspi-realtimeUpgrade linux-image-realtime-6.8.1Upgrade linux-image-raspi-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-gcp-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-oem-6.17Upgrade linux-image-aws-64k-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-generic-6.8Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-azure-fipsUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-awsUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-kvmUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-aws-64k-6.17Upgrade linux-image-oracleUpgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-gcpUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-gke-64k-6.8Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-gke-64kUpgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-lts-24.04 | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Dec 8, 2025 |
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