panic: ASan: Invalid access, 1-byte read at 0xfffffe0056b69253, MallocRedZone(fb) cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xffffffff84f49ef0 kdb_backtrace() at kdb_backtrace+0xd3/frame 0xffffffff84f4a050 vpanic() at vpanic+0x2c5/frame 0xffffffff84f4a130 panic() at panic+0xb5/frame 0xffffffff84f4a200 __asan_load1_noabort() at __asan_load1_noabort+0x11a/frame 0xffffffff84f4a2c0 ns8250_bus_probe() at ns8250_bus_probe+0xfc8/frame 0xffffffff84f4a340 uart_bus_probe() at uart_bus_probe+0x3d6/frame 0xffffffff84f4a3d0 uart_acpi_probe() at uart_acpi_probe+0x2f1/frame 0xffffffff84f4a4c0 device_probe_child() at device_probe_child+0x375/frame 0xffffffff84f4a560 device_probe() at device_probe+0x16c/frame 0xffffffff84f4a5b0 device_probe_and_attach() at device_probe_and_attach+0x3b/frame 0xffffffff84f4a5f0 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff84f4a610 acpi_attach() at acpi_attach+0x1ade/frame 0xffffffff84f4a810 device_attach() at device_attach+0x6ff/frame 0xffffffff84f4a910 device_probe_and_attach() at device_probe_and_attach+0xe3/frame 0xffffffff84f4a950 bus_generic_attach() at bus_generic_attach+0x28/frame 0xffffffff84f4a970 device_attach() at device_attach+0x6ff/frame 0xffffffff84f4aa80 device_probe_and_attach() at device_probe_and_attach+0xe3/frame 0xffffffff84f4aac0 bus_generic_new_pass() at bus_generic_new_pass+0x21e/frame 0xffffffff84f4ab10 bus_set_pass() at bus_set_pass+0x12b/frame 0xffffffff84f4ab50 configure() at configure+0x10/frame 0xffffffff84f4ab70 mi_startup() at mi_startup+0x457/frame 0xffffffff84f4acb0 btext() at btext+0x22 KDB: enter: panic [ thread pid 0 tid 100000 ] Stopped at kdb_enter+0x6b: movq $0,0x28f9c5a(%rip) db>