CVE-2026-72009 pmdomain: imx93-blk-ctrl: Extract PHY as shared domain for DSI/CSI
A race condition in the i.MX93 block control driver allows disabling shared MIPI PHY resources while active, potentially causing system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72009?
CVE-2026-72009 is a high-severity vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: imx93-blk-ctrl: Extract PHY as shared domain for DSI/CSI
The MIPI DSI and CSI domains share control bits for clock and reset, which can lead to incorrect behavior if one domain disables the shared resource while the other is still active.
To fix the issue, introduce a shared MIPI PHY power domain to own the common resources and make DSI and CSI its subdomains. This ensures the shared bits are properly managed and not disabled while still in use.
Weakness: CWE-362
Which versions are affected by CVE-2026-72009?
How do I fix CVE-2026-72009?
Apply the vendor's patch.
Is CVE-2026-72009 being exploited?
There is no known exploitation of CVE-2026-72009 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72009, DEBIAN-CVE-2026-72009, GHSA-7wvh-6fjm-x43j, UBUNTU-CVE-2026-72009.