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Linux Kernel CVE-2026-72009

| EUVDEUVD-2026-59108 HIGH
2026-08-15 416baaa9-dc9f-4396-8d5f-8c081fb06d67 GHSA-7wvh-6fjm-x43j
High
Disputed · 7.8 Vendor: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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Severity by source

Sources disagree (Low–High)
Vendor (416baaa9-dc9f-4396-8d5f-8c081fb06d67) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.0 HIGH

AC:H assigned because exploiting the shared-resource race between two power domain transitions requires deliberate timing orchestration; all other metrics align with the vendor vector.

3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
4.0 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
5.5 LOW
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorVendor: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Aug 17, 2026 - 12:48 vuln.today
CVSS changed
Aug 17, 2026 - 06:22 NVD
7.8 (HIGH)
Patch available
Aug 15, 2026 - 07:20 EUVD
CVE Published
Aug 15, 2026 - 06:20 cve.org
HIGH 7.8
CVE Published
Aug 15, 2026 - 06:20 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

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.

AnalysisAI

Shared MIPI PHY resource mismanagement in the Linux kernel's NXP i.MX93 block-control power domain driver (imx93-blk-ctrl) allows a local attacker with low privileges to trigger kernel-level incorrect behavior - including potential memory corruption, information disclosure, and system instability - by exploiting the fact that the DSI and CSI subdomains share clock and reset control bits without coordination. Patches are available across stable branches (6.18.42, 7.1.5, 7.2-rc4), and exploitation probability is low per EPSS (0.20%, 10th percentile). No public exploit or CISA KEV listing has been identified at time of analysis.

Technical ContextAI

The vulnerability resides in the pmdomain subsystem's imx93-blk-ctrl driver, which manages power domains on the NXP i.MX93 SoC - a Cortex-A55/M33 application processor targeted at industrial and IoT embedded systems. The MIPI DSI (Display Serial Interface) and MIPI CSI (Camera Serial Interface) power domains in this SoC share underlying hardware control bits for PHY clocking and reset. The driver previously modeled these as independent domains, so when either domain was powered down, it could clear the shared bits even while the peer domain remained active and dependent on those same resources. The root cause is a shared-resource ownership problem: no mutual exclusion or reference counting existed for the PHY clock/reset state. The fix introduces an explicit shared MIPI PHY parent power domain that exclusively owns the common control bits, with DSI and CSI operating as child subdomains - ensuring proper reference tracking. No CWE was assigned in the NVD record, but this maps conceptually to CWE-362 (Race Condition / Concurrent Execution) or CWE-667 (Improper Locking) at the power-domain management layer.

RemediationAI

The primary fix is to upgrade to a patched kernel: 7.2-rc4 or later in the 7.2 series, 7.1.5 or later in the 7.1 stable series, or 6.18.42 or later in the 6.18 stable series. Patch commits are publicly available at the three kernel.org stable links referenced above. For 6.1 longterm branch users, backport of the fix commits should be evaluated, as the EUVD data identifies 6.1 as affected but does not list a specific 6.1.x fix version - vendors maintaining 6.1-based BSPs for i.MX93 should consult their SoC vendor (NXP) or apply the upstream commits manually. As a compensating control where patching is not immediately feasible, restricting local user access to power-management sysfs/debugfs interfaces (e.g., via restrictive permissions on /sys/kernel/debug/pm_genpd/) reduces the surface but does not eliminate the flaw. Disabling unused MIPI CSI or DSI interfaces in the device tree eliminates the shared-resource conflict entirely for deployments that do not require both interfaces simultaneously, at the cost of losing camera or display functionality. No general-purpose workaround exists for systems requiring both DSI and CSI simultaneously.

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 16.0 Affected

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CVE-2026-72009 vulnerability details – vuln.today

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