Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 64.458473][ T7048] ------------[ cut here ]------------ [ 64.464499][ T7048] memtype_reserve failed: [mem 0xffffffffff000-0x003fefff], req write-back [ 64.473963][ T7048] WARNING: CPU: 0 PID: 7048 at arch/x86/mm/pat/memtype.c:589 memtype_reserve+0x69f/0x820 [ 64.484248][ T7048] Kernel panic - not syncing: panic_on_warn set ... [ 64.491000][ T7048] CPU: 0 PID: 7048 Comm: syz-executor838 Not tainted 5.7.0-rc4-syzkaller #0 [ 64.499813][ T7048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.510096][ T7048] Call Trace: [ 64.513571][ T7048] dump_stack+0x188/0x20d [ 64.517997][ T7048] ? memtype_reserve+0x680/0x820 [ 64.523142][ T7048] panic+0x2e3/0x75c [ 64.527485][ T7048] ? add_taint.cold+0x16/0x16 [ 64.532161][ T7048] ? __probe_kernel_read+0x188/0x1d0 [ 64.537428][ T7048] ? __warn.cold+0x14/0x35 [ 64.541828][ T7048] ? __warn+0xd5/0x1c8 [ 64.546059][ T7048] ? memtype_reserve+0x69f/0x820 [ 64.551354][ T7048] __warn.cold+0x2f/0x35 [ 64.555592][ T7048] ? irq_work_queue+0xc3/0x100 [ 64.560372][ T7048] ? memtype_reserve+0x69f/0x820 [ 64.565299][ T7048] report_bug+0x27b/0x2f0 [ 64.569722][ T7048] do_error_trap+0x12b/0x220 [ 64.574308][ T7048] ? memtype_reserve+0x69f/0x820 [ 64.579246][ T7048] do_invalid_op+0x32/0x40 [ 64.583734][ T7048] ? memtype_reserve+0x69f/0x820 [ 64.588650][ T7048] invalid_op+0x23/0x30 [ 64.592788][ T7048] RIP: 0010:memtype_reserve+0x69f/0x820 [ 64.598499][ T7048] Code: 48 8b 2c ed c0 00 29 88 e8 ae ad 3e 00 48 8d 4b ff 49 89 e8 4c 89 e2 48 c7 c6 20 01 29 88 48 c7 c7 80 f9 28 88 e8 79 e8 0f 00 <0f> 0b 41 bf ea ff ff ff e9 03 fc ff ff 41 bf ea ff ff ff e9 f8 fb [ 64.618903][ T7048] RSP: 0018:ffffc90001277790 EFLAGS: 00010282 [ 64.625325][ T7048] RAX: 0000000000000000 RBX: 00000000003ff000 RCX: 0000000000000000 [ 64.634017][ T7048] RDX: 0000000000000000 RSI: ffffffff815ce181 RDI: fffff5200024eee4 [ 64.641988][ T7048] RBP: ffffffff8828ff40 R08: ffff88809583a3c0 R09: ffffed1015cc66a9 [ 64.650910][ T7048] R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: 000ffffffffff000 [ 64.658883][ T7048] R13: 1ffff9200024eef8 R14: dffffc0000000000 R15: 0000000000000000 [ 64.667560][ T7048] ? vprintk_func+0x81/0x17e [ 64.672355][ T7048] ? __lock_acquire+0x2184/0x4c50 [ 64.677391][ T7048] ? pat_init+0x440/0x440 [ 64.681712][ T7048] ? __init_cache_modes+0x270/0x270 [ 64.687011][ T7048] reserve_pfn_range+0x173/0x470 [ 64.691945][ T7048] ? arch_io_reserve_memtype_wc+0xa0/0xa0 [ 64.697746][ T7048] ? print_usage_bug+0x240/0x240 [ 64.703004][ T7048] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.708996][ T7048] ? ksys_mmap_pgoff+0x457/0x5b0 [ 64.713963][ T7048] track_pfn_remap+0x18b/0x280 [ 64.718714][ T7048] remap_pfn_range+0x202/0xbf0 [ 64.724123][ T7048] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.729715][ T7048] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.735537][ T7048] ? __kasan_kmalloc.constprop.0+0x75/0xd0 [ 64.741508][ T7048] ? copy_page_range+0x1f00/0x1f00 [ 64.746629][ T7048] ? __kmalloc+0x62f/0x7a0 [ 64.751052][ T7048] ? hcd_buffer_alloc+0x1ed/0x290 [ 64.756080][ T7048] dma_direct_mmap+0x197/0x260 [ 64.760831][ T7048] dma_mmap_attrs+0xfe/0x150 [ 64.765525][ T7048] usbdev_mmap+0x3ae/0x730 [ 64.770030][ T7048] ? usbdev_vm_close+0x40/0x40 [ 64.774801][ T7048] mmap_region+0xafb/0x1540 [ 64.779534][ T7048] ? __x64_sys_brk+0x6e0/0x6e0 [ 64.784406][ T7048] ? security_mmap_addr+0x81/0xa0 [ 64.789433][ T7048] ? get_unmapped_area+0x2a0/0x3c0 [ 64.794543][ T7048] do_mmap+0x849/0x1160 [ 64.798688][ T7048] vm_mmap_pgoff+0x197/0x200 [ 64.803413][ T7048] ? randomize_stack_top+0x100/0x100 [ 64.808698][ T7048] ? ksys_dup3+0x3c0/0x3c0 [ 64.813206][ T7048] ksys_mmap_pgoff+0x457/0x5b0 [ 64.817970][ T7048] ? find_mergeable_anon_vma+0x2c0/0x2c0 [ 64.823672][ T7048] ? trace_hardirqs_off_caller+0x55/0x230 [ 64.829407][ T7048] do_fast_syscall_32+0x270/0xe90 [ 64.834444][ T7048] entry_SYSENTER_compat+0x70/0x7f [ 64.841437][ T7048] Kernel Offset: disabled [ 64.845920][ T7048] Rebooting in 86400 seconds..