In the Linux kernel, the following vulnerability has been resolved:
spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected
Return IRQ_NONE 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