Bug 2440618 (CVE-2026-23218)

Summary: CVE-2026-23218 kernel: gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2026-02-18 15:02:01 UTC 
In the Linux kernel, the following vulnerability has been resolved:

gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc()

Fix incorrect NULL check in loongson_gpio_init_irqchip().
The function checks chip->parent instead of chip->irq.parents.
Comment 1 Alexander B 2026-02-18 16:42:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026021801-CVE-2026-23218-4114@gregkh/T