CVE-2026-68221
Description
A flaw was found in the Linux kernel's Nuvoton NPCM video driver. The npcm_video_probe() function allocates memory that is not properly freed on error paths or during device removal, leading to memory leaks. Additionally, when npcm_video_setup_video() fails, associated reserved memory is not released. These issues can lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system.
Statement
This issue affects systems using the Nuvoton NPCM video driver on BMC/embedded platforms. Probe error paths and remove() fail to free npcm_video allocations and reserved memory associations, leaking resources on each failed probe or unbind. Systems without NPCM video hardware are not affected.
Mitigation
To mitigate this issue, prevent the npcm-video module from loading. See https://access.redhat.com/solutions/41278 for instructions.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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