CVE-2026-72153
In the Linux kernel, the following vulnerability has been resolved: irqchip/crossbar: Use correct index in crossbar_domain_free() crossbar_domain_free() resets the domain data and then uses the nulled out irq_data->hwirq member as index to reset the…
Does this matter?
Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published.
Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/crossbar: Use correct index in crossbar_domain_free() crossbar_domain_free() resets the domain data and then uses the nulled out irq_data->hwirq member as index to reset the irq_map[] entry and to write the relevant crossbar register with a safe entry. That means it never frees the correct index and keeps the crossbar register connection to the source interrupt active. If it would not reset the domain data, then this would be even worse as irq_data->hwirq holds the source interrupt number, but both the map and register index need the corresponding GIC SPI number and not the source interrupt number. This might even result in an out of bounds access as the source interrupt number can be higher than the maximal index space. Fix this by using the GIC SPI index from the parent domain's irq_data.
- CVSS
- Not yet scored
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/043db005a8d6932dc7d217c86307e9af0bc10ddc
- https://git.kernel.org/stable/c/13bdb5140405ff283f9052e65ee1d5c2303765c7
- https://git.kernel.org/stable/c/1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df
- https://git.kernel.org/stable/c/36ca587f55a2c04468a89fd16174bb2f78dc04ec
- https://git.kernel.org/stable/c/424130169dc03b84ea604685409726d61bcec859
- https://git.kernel.org/stable/c/cca649a23a5fc8aae536fc27a0546c67690a4078
- https://git.kernel.org/stable/c/ccc3664679763d2d6f067c28729bdff627bb72d0
- https://git.kernel.org/stable/c/e5be5d452d5f1efbb3342da2b00029be6c99034e
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.