In the Linux kernel, the following vulnerability has been resolved:
trace/fgraph: Fix the warning caused by missing unregister notifier
This warning was triggered during testing on v6.16:
notifier callback ftrace_suspend_notifier_call already registered WARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0 ... Call Trace: <TASK> blocking_notifier_chain_register+0x34/0x60 register_ftrace_graph+0x330/0x410 ftrace_profile_write+0x1e9/0x340 vfs_write+0xf8/0x420 ? filp_flush+0x8a/0xa0 ? filp_close+0x1f/0x30 ? do_dup2+0xaf/0x160 ksys_write+0x65/0xe0 do_syscall_64+0xa4/0x260 entry_SYSCALL_64_after_hwframe+0x77/0x7f
When writing to the function_profile_enabled interface, the notifier was not unregistered after start_graph_tracing failed, causing a warning the next time function_profile_enabled was written.
Fixed by adding unregister_pm_notifier in the exception path.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-tools-debuginfoUpgrade perf6.12Upgrade kernel6.12-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-tools-develUpgrade kernel6.12-headersUpgrade kernel6.12-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-libbpf-debuginfoUpgrade kernel-livepatch-6.12.46-66.121Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-toolsUpgrade perf6.12-debuginfoUpgrade bpftool6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-libbpfUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-modules-extraUpgrade kernel6.12Upgrade kernel6.12-libbpf-staticUpgrade bpftool6.12 | Sep 30, 2025 | Sep 16, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftool | Dec 12, 2025 | Dec 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Jan 15, 2026 | Jan 6, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libs | Dec 12, 2025 | Dec 11, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Nov 11, 2025 | Sep 16, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 16, 2025 |
| Ubuntu | — | Upgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-ibm-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-oracle-64kUpgrade linux-image-generic-6.8Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-azure-fips-6.8Upgrade linux-image-kvmUpgrade linux-image-virtual-6.8Upgrade linux-image-raspiUpgrade linux-image-fips-6.8Upgrade linux-image-xilinxUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-awsUpgrade linux-image-nvidia-64kUpgrade linux-image-lowlatencyUpgrade linux-image-oem-22.04aUpgrade linux-image-azureUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-realtime-6.8.1Upgrade linux-image-gcpUpgrade linux-image-ibm-classicUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibmUpgrade linux-image-gcp-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-gke-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-realtimeUpgrade linux-image-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-virtualUpgrade linux-image-raspi-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-gkeopUpgrade linux-image-gkeUpgrade linux-image-aws-64kUpgrade linux-image-gke-6.8Upgrade linux-image-fipsUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-lowlatency-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-nvidiaUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-64kUpgrade linux-image-genericUpgrade linux-image-lowlatency-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-xilinx-6.8Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-gcp-64k-lts-24.04 | Mar 17, 2026 | Sep 16, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub