CVE-2026-72153irqchip/crossbar: Use correct index in crossbar_domain_free()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 783d31863fb826f1a3754a2d5959a022a1b12d54 builds before 13bdb5140405ff283f9052e65ee1d5c2303765c7; 783d31863fb826f1a3754a2d5959a022a1b12d54 builds before 1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df; from 783d31863fb826f1a3754a2d5959a022a1b12d54 before ccc3664679763d2d6f067c28729bdff627bb72d0; from 783d31863fb826f1a3754a2d5959a022a1b12d54 before 424130169dc03b84ea604685409726d61bcec859; from 783d31863fb826f1a3754a2d5959a022a1b12d54 before cca649a23a5fc8aae536fc27a0546c67690a4078; 783d31863fb826f1a3754a2d5959a022a1b12d54 builds before 36ca587f55a2c04468a89fd16174bb2f78dc04ec; from 783d31863fb826f1a3754a2d5959a022a1b12d54 before e5be5d452d5f1efbb3342da2b00029be6c99034e; 783d31863fb826f1a3754a2d5959a022a1b12d54 builds before 043db005a8d6932dc7d217c86307e9af0bc10ddc | CNA record |
References
- https://git.kernel.org/stable/c/13bdb5140405ff283f9052e65ee1d5c2303765c7
- https://git.kernel.org/stable/c/1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df
- https://git.kernel.org/stable/c/ccc3664679763d2d6f067c28729bdff627bb72d0
- https://git.kernel.org/stable/c/424130169dc03b84ea604685409726d61bcec859
- https://git.kernel.org/stable/c/cca649a23a5fc8aae536fc27a0546c67690a4078
- https://git.kernel.org/stable/c/36ca587f55a2c04468a89fd16174bb2f78dc04ec
- https://git.kernel.org/stable/c/e5be5d452d5f1efbb3342da2b00029be6c99034e
- https://git.kernel.org/stable/c/043db005a8d6932dc7d217c86307e9af0bc10ddc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.