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i.MX8MQ Linux Kernel: Potential System Hang from VPU Reset
CVE-2026-23116
Summary
The i.MX8MQ Linux kernel has a fix for a potential system hang issue. On this platform, the Video Processing Unit (VPU) can't be reset separately, which might cause the system to freeze. This has been resolved, and users should apply the kernel update to avoid the risk.
Original title
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu
For i.MX8MQ platform, the ADB in the VPUMIX domain has n...
Original description
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu
For i.MX8MQ platform, the ADB in the VPUMIX domain has no separate reset
and clock enable bits, but is ungated and reset together with the VPUs.
So we can't reset G1 or G2 separately, it may led to the system hang.
Remove rst_mask and clk_mask of imx8mq_vpu_blk_ctl_domain_data.
Let imx8mq_vpu_power_notifier() do really vpu reset.
pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu
For i.MX8MQ platform, the ADB in the VPUMIX domain has no separate reset
and clock enable bits, but is ungated and reset together with the VPUs.
So we can't reset G1 or G2 separately, it may led to the system hang.
Remove rst_mask and clk_mask of imx8mq_vpu_blk_ctl_domain_data.
Let imx8mq_vpu_power_notifier() do really vpu reset.
- https://git.kernel.org/stable/c/3de49966499634454fd59e0e6fecd50baab7febd
- https://git.kernel.org/stable/c/5c56a6f4b5a4f87c094c92a30fa17e28e37ec2ab
- https://git.kernel.org/stable/c/8859e336d233e61a4c40d40dc6a9f21e8b9b719c
- https://git.kernel.org/stable/c/cad7003d951e8899db58ee2fef211586af726f09
- https://git.kernel.org/stable/c/fd675de6bddf7e9bdf42ae3929d4c27ba6d1ef76
Published: 14 Feb 2026 · Updated: 10 Mar 2026 · First seen: 6 Mar 2026