In the Linux kernel, the following vulnerability has been resolved: spi: hisi-sfc-v3xx: Return IRQNONE if no interrupts were detected Return IRQNONE from the interrupt handler when no interrupt was detected. Because an empty interrupt will cause a null pointer error: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: complete+0x54/0x100 hisisfcv3xxisr+0x2c/0x40 [spihisisfcv3xx] _handleirqeventpercpu+0x64/0x1e0 handleirqevent+0x7c/0x1cc