In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
The previous commit 0718a78f6a9f (ALSA: usb-audio: Kill timer properly at removal) patched a UAF issue caused by the error timer.
However, because the error timer kill added in this patch occurs after the endpoint delete, a race condition to UAF still occurs, albeit rarely.
Additionally, since kill-cleanup for urb is also missing, freed memory can be accessed in interrupt context related to urb, which can cause UAF.
Therefore, to prevent this, error timer and urb must be killed before freeing the heap memory.
| 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-6.11 | Ubuntu | noble | * |
| Linux-oem-6.11 | Ubuntu | upstream | * |
| Linux-oem-6.5 | Ubuntu | jammy | * |
| Linux-oem-6.5 | Ubuntu | upstream | * |
| Linux-oem-6.8 | Ubuntu | noble | * |
| Linux-oem-6.8 | 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 | * |