"value":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_port: Check IRQ data before use\n\nIn case the leaf driver wants to use IRQ polling (irq = 0) and\nIIR register shows that an interrupt happened in the 8250 hardware\nthe IRQ data can be NULL. In such a case we need to skip the wake\nevent as we came to this path from the timer interrupt and quite\nlikely system is already awake.\n\nWithout this fix we have got an Oops:\n\n serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A\n ...\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n RIP: 0010:serial8250_handle_irq+0x7c/0x240\n Call Trace:\n ? serial8250_handle_irq+0x7c/0x240\n ? __pfx_serial8250_timeout+0x10/0x10"