Bug 2516634 (CVE-2026-72009)

Summary: CVE-2026-72009 kernel: pmdomain: imx93-blk-ctrl: Extract PHY as shared domain for DSI/CSI
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel. The MIPI DSI (Display Serial Interface) and CSI (Camera Serial Interface) power domains share control bits for clock and reset. This improper resource management allows one domain to disable shared resources while the other is still active, leading to incorrect system behavior. This can result in a denial of service (DoS) or system instability.
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Description OSIDB Bzimport 2026-08-15 06:23:04 UTC 
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.
Comment 1 Keith Grant 2026-08-17 15:27:19 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081507-CVE-2026-72009-c32b@gregkh/T