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: 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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux-allwinner-5.19 | Ubuntu | jammy | * |
| Linux-allwinner-5.19 | Ubuntu | upstream | * |
| Linux-aws-5.0 | Ubuntu | esm-infra/bionic | * |
| Linux-aws-5.0 | Ubuntu | upstream | * |
| Linux-aws-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-aws-5.11 | Ubuntu | upstream | * |
| Linux-aws-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-aws-5.13 | Ubuntu | upstream | * |
| Linux-aws-5.19 | Ubuntu | jammy | * |
| Linux-aws-5.19 | Ubuntu | upstream | * |
| Linux-aws-5.3 | Ubuntu | esm-infra/bionic | * |
| Linux-aws-5.3 | Ubuntu | upstream | * |
| Linux-aws-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-aws-5.8 | Ubuntu | upstream | * |
| Linux-aws-6.2 | Ubuntu | jammy | * |
| Linux-aws-6.2 | Ubuntu | upstream | * |
| Linux-aws-6.5 | Ubuntu | jammy | * |
| Linux-aws-6.5 | Ubuntu | upstream | * |
| Linux-azure | Ubuntu | esm-infra/bionic | * |
| Linux-azure-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-azure-5.11 | Ubuntu | upstream | * |
| Linux-azure-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-azure-5.13 | Ubuntu | upstream | * |
| Linux-azure-5.19 | Ubuntu | jammy | * |
| Linux-azure-5.19 | Ubuntu | upstream | * |
| Linux-azure-5.3 | Ubuntu | esm-infra/bionic | * |
| Linux-azure-5.3 | Ubuntu | upstream | * |
| Linux-azure-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-azure-5.8 | Ubuntu | upstream | * |
| Linux-azure-6.11 | Ubuntu | noble | * |
| Linux-azure-6.11 | Ubuntu | upstream | * |
| Linux-azure-6.2 | Ubuntu | jammy | * |
| Linux-azure-6.2 | Ubuntu | upstream | * |
| Linux-azure-6.5 | Ubuntu | jammy | * |
| Linux-azure-6.5 | Ubuntu | upstream | * |
| Linux-azure-edge | Ubuntu | esm-infra/bionic | * |
| Linux-azure-edge | Ubuntu | upstream | * |
| Linux-azure-fde | Ubuntu | esm-infra/focal | * |
| Linux-azure-fde-5.19 | Ubuntu | jammy | * |
| Linux-azure-fde-5.19 | Ubuntu | upstream | * |
| Linux-azure-fde-6.2 | Ubuntu | jammy | * |
| Linux-azure-fde-6.2 | Ubuntu | upstream | * |
| Linux-gcp | Ubuntu | esm-infra/bionic | * |
| Linux-gcp-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-gcp-5.11 | Ubuntu | upstream | * |
| Linux-gcp-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-gcp-5.13 | Ubuntu | upstream | * |
| Linux-gcp-5.19 | Ubuntu | jammy | * |
| Linux-gcp-5.19 | Ubuntu | upstream | * |
| Linux-gcp-5.3 | Ubuntu | esm-infra/bionic | * |
| Linux-gcp-5.3 | Ubuntu | upstream | * |
| Linux-gcp-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-gcp-5.8 | Ubuntu | upstream | * |
| Linux-gcp-6.11 | Ubuntu | noble | * |
| Linux-gcp-6.11 | Ubuntu | upstream | * |
| Linux-gcp-6.2 | Ubuntu | jammy | * |
| Linux-gcp-6.2 | Ubuntu | upstream | * |
| Linux-gcp-6.5 | Ubuntu | jammy | * |
| Linux-gcp-6.5 | Ubuntu | upstream | * |
| Linux-gke | Ubuntu | esm-infra/focal | * |
| Linux-gke-4.15 | Ubuntu | esm-infra/bionic | * |
| Linux-gke-4.15 | Ubuntu | upstream | * |
| Linux-gke-5.15 | Ubuntu | esm-infra/focal | * |
| Linux-gke-5.15 | Ubuntu | upstream | * |
| Linux-gke-5.4 | Ubuntu | esm-infra/bionic | * |
| Linux-gke-5.4 | Ubuntu | upstream | * |
| Linux-gkeop | Ubuntu | esm-infra/focal | * |
| Linux-gkeop-5.15 | Ubuntu | esm-infra/focal | * |
| Linux-gkeop-5.4 | Ubuntu | esm-infra/bionic | * |
| Linux-gkeop-5.4 | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | esm-infra/bionic | * |
| Linux-hwe-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-hwe-5.11 | Ubuntu | upstream | * |
| Linux-hwe-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-hwe-5.13 | Ubuntu | upstream | * |
| Linux-hwe-5.19 | Ubuntu | jammy | * |
| Linux-hwe-5.19 | Ubuntu | upstream | * |
| Linux-hwe-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-hwe-5.8 | Ubuntu | upstream | * |
| Linux-hwe-6.11 | Ubuntu | noble | * |
| Linux-hwe-6.11 | Ubuntu | upstream | * |
| Linux-hwe-6.2 | Ubuntu | jammy | * |
| Linux-hwe-6.2 | Ubuntu | upstream | * |
| Linux-hwe-6.5 | Ubuntu | jammy | * |
| Linux-hwe-6.5 | Ubuntu | upstream | * |
| Linux-hwe-edge | Ubuntu | esm-infra/bionic | * |
| Linux-hwe-edge | Ubuntu | esm-infra/xenial | * |
| Linux-hwe-edge | Ubuntu | upstream | * |
| Linux-intel-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-intel-5.13 | Ubuntu | upstream | * |
| Linux-intel-iot-realtime | Ubuntu | jammy | * |
| Linux-lowlatency-hwe-5.19 | Ubuntu | jammy | * |
| Linux-lowlatency-hwe-5.19 | Ubuntu | upstream | * |
| Linux-lowlatency-hwe-6.11 | Ubuntu | noble | * |
| Linux-lowlatency-hwe-6.11 | Ubuntu | upstream | * |
| Linux-lowlatency-hwe-6.2 | Ubuntu | jammy | * |
| Linux-lowlatency-hwe-6.2 | Ubuntu | upstream | * |
| Linux-lowlatency-hwe-6.5 | Ubuntu | jammy | * |
| Linux-lowlatency-hwe-6.5 | Ubuntu | upstream | * |
| Linux-nvidia-6.2 | Ubuntu | jammy | * |
| Linux-nvidia-6.2 | Ubuntu | upstream | * |
| Linux-nvidia-6.5 | Ubuntu | jammy | * |
| Linux-nvidia-6.5 | Ubuntu | upstream | * |
| Linux-oem | Ubuntu | esm-infra/bionic | * |
| Linux-oem | Ubuntu | upstream | * |
| Linux-oem-5.10 | Ubuntu | esm-infra/focal | * |
| Linux-oem-5.10 | Ubuntu | upstream | * |
| Linux-oem-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-oem-5.13 | Ubuntu | upstream | * |
| Linux-oem-5.14 | Ubuntu | esm-infra/focal | * |
| Linux-oem-5.14 | Ubuntu | upstream | * |
| Linux-oem-5.17 | Ubuntu | jammy | * |
| Linux-oem-5.17 | Ubuntu | upstream | * |
| Linux-oem-5.6 | Ubuntu | esm-infra/focal | * |
| Linux-oem-5.6 | Ubuntu | upstream | * |
| Linux-oem-6.0 | Ubuntu | jammy | * |
| Linux-oem-6.0 | Ubuntu | upstream | * |
| Linux-oem-6.1 | Ubuntu | jammy | * |
| Linux-oem-6.1 | Ubuntu | upstream | * |
| Linux-oem-6.5 | Ubuntu | jammy | * |
| Linux-oem-6.5 | Ubuntu | upstream | * |
| Linux-oracle-5.0 | Ubuntu | esm-infra/bionic | * |
| Linux-oracle-5.0 | Ubuntu | upstream | * |
| Linux-oracle-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-oracle-5.11 | Ubuntu | upstream | * |
| Linux-oracle-5.13 | Ubuntu | esm-infra/focal | * |
| Linux-oracle-5.13 | Ubuntu | upstream | * |
| Linux-oracle-5.3 | Ubuntu | esm-infra/bionic | * |
| Linux-oracle-5.3 | Ubuntu | upstream | * |
| Linux-oracle-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-oracle-5.8 | Ubuntu | upstream | * |
| Linux-oracle-6.5 | Ubuntu | jammy | * |
| Linux-oracle-6.5 | Ubuntu | upstream | * |
| Linux-raspi-realtime | Ubuntu | noble | * |
| Linux-raspi2 | Ubuntu | esm-infra/focal | * |
| Linux-raspi2 | Ubuntu | upstream | * |
| Linux-realtime | Ubuntu | jammy | * |
| Linux-realtime | Ubuntu | noble | * |
| Linux-riscv | Ubuntu | esm-infra/focal | * |
| Linux-riscv | Ubuntu | jammy | * |
| Linux-riscv | Ubuntu | noble | * |
| Linux-riscv-5.11 | Ubuntu | esm-infra/focal | * |
| Linux-riscv-5.11 | Ubuntu | upstream | * |
| Linux-riscv-5.19 | Ubuntu | jammy | * |
| Linux-riscv-5.19 | Ubuntu | upstream | * |
| Linux-riscv-5.8 | Ubuntu | esm-infra/focal | * |
| Linux-riscv-5.8 | Ubuntu | upstream | * |
| Linux-riscv-6.5 | Ubuntu | jammy | * |
| Linux-riscv-6.5 | Ubuntu | upstream | * |
| Linux-starfive-5.19 | Ubuntu | jammy | * |
| Linux-starfive-5.19 | Ubuntu | upstream | * |
| Linux-starfive-6.2 | Ubuntu | jammy | * |
| Linux-starfive-6.2 | Ubuntu | upstream | * |
| Linux-starfive-6.5 | Ubuntu | jammy | * |
| Linux-starfive-6.5 | Ubuntu | upstream | * |