Loongson64bit GPIO Driver NULL Deref in IRQ Init
CVE-2026-23218 Published on February 18, 2026
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.
Products Associated with CVE-2026-23218
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Affected Versions
Linux:- Version 03c146cb6cd14fdab2d2c7ab1b4e8035b54df8cc and below e71e3fa90a15134113f61343392e887cd1f4bf7c is affected.
- Version 03c146cb6cd14fdab2d2c7ab1b4e8035b54df8cc and below e34f77b09080c86c929153e2a72da26b4f8947ff is affected.
- Version 6.18 is affected.
- Before 6.18 is unaffected.
- Version 6.18.10, <= 6.18.* is unaffected.
- Version 6.19, <= * is unaffected.