Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 72.263343][ T7031] ------------[ cut here ]------------ [ 72.268967][ T7031] memtype_reserve failed: [mem 0xffffffffff000-0x003fefff], req write-back [ 72.278615][ T7031] WARNING: CPU: 0 PID: 7031 at arch/x86/mm/pat/memtype.c:589 memtype_reserve+0x69f/0x820 [ 72.288407][ T7031] Kernel panic - not syncing: panic_on_warn set ... [ 72.294974][ T7031] CPU: 0 PID: 7031 Comm: syz-executor055 Not tainted 5.7.0-rc4-syzkaller #0 [ 72.303900][ T7031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.314068][ T7031] Call Trace: [ 72.317350][ T7031] dump_stack+0x188/0x20d [ 72.321778][ T7031] ? memtype_reserve+0x680/0x820 [ 72.326699][ T7031] panic+0x2e3/0x75c [ 72.330663][ T7031] ? add_taint.cold+0x16/0x16 [ 72.335326][ T7031] ? __probe_kernel_read+0x188/0x1d0 [ 72.340678][ T7031] ? __warn.cold+0x14/0x35 [ 72.345094][ T7031] ? __warn+0xd5/0x1c8 [ 72.349155][ T7031] ? memtype_reserve+0x69f/0x820 [ 72.354080][ T7031] __warn.cold+0x2f/0x35 [ 72.358313][ T7031] ? irq_work_queue+0xc3/0x100 [ 72.363229][ T7031] ? memtype_reserve+0x69f/0x820 [ 72.368299][ T7031] report_bug+0x27b/0x2f0 [ 72.372622][ T7031] do_error_trap+0x12b/0x220 [ 72.377207][ T7031] ? memtype_reserve+0x69f/0x820 [ 72.382142][ T7031] do_invalid_op+0x32/0x40 [ 72.386548][ T7031] ? memtype_reserve+0x69f/0x820 [ 72.391477][ T7031] invalid_op+0x23/0x30 [ 72.395622][ T7031] RIP: 0010:memtype_reserve+0x69f/0x820 [ 72.401153][ T7031] 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 [ 72.420976][ T7031] RSP: 0018:ffffc90001477790 EFLAGS: 00010282 [ 72.427025][ T7031] RAX: 0000000000000000 RBX: 00000000003ff000 RCX: 0000000000000000 [ 72.435011][ T7031] RDX: 0000000000000000 RSI: ffffffff815ce181 RDI: fffff5200028eee4 [ 72.442969][ T7031] RBP: ffffffff8828ff40 R08: ffff888094d16300 R09: ffffed1015cc66a9 [ 72.450928][ T7031] R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: 000ffffffffff000 [ 72.458881][ T7031] R13: 1ffff9200028eef8 R14: dffffc0000000000 R15: 0000000000000000 [ 72.466853][ T7031] ? vprintk_func+0x81/0x17e [ 72.471495][ T7031] ? __lock_acquire+0x2184/0x4c50 [ 72.476504][ T7031] ? pat_init+0x440/0x440 [ 72.480939][ T7031] ? __init_cache_modes+0x270/0x270 [ 72.486126][ T7031] reserve_pfn_range+0x173/0x470 [ 72.491050][ T7031] ? arch_io_reserve_memtype_wc+0xa0/0xa0 [ 72.496796][ T7031] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.502788][ T7031] ? ksys_mmap_pgoff+0x457/0x5b0 [ 72.507714][ T7031] track_pfn_remap+0x18b/0x280 [ 72.512483][ T7031] remap_pfn_range+0x202/0xbf0 [ 72.517249][ T7031] ? __kmalloc+0x75f/0x7a0 [ 72.521907][ T7031] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.527447][ T7031] ? __kasan_kmalloc.constprop.0+0x75/0xd0 [ 72.533362][ T7031] ? copy_page_range+0x1f00/0x1f00 [ 72.538598][ T7031] ? __kmalloc+0x62f/0x7a0 [ 72.543014][ T7031] ? hcd_buffer_alloc+0x1ed/0x290 [ 72.548033][ T7031] dma_direct_mmap+0x197/0x260 [ 72.552789][ T7031] dma_mmap_attrs+0xfe/0x150 [ 72.557371][ T7031] usbdev_mmap+0x3ae/0x730 [ 72.561777][ T7031] ? usbdev_vm_close+0x40/0x40 [ 72.566596][ T7031] mmap_region+0xafb/0x1540 [ 72.571093][ T7031] ? __x64_sys_brk+0x6e0/0x6e0 [ 72.575843][ T7031] ? security_mmap_addr+0x81/0xa0 [ 72.580854][ T7031] ? get_unmapped_area+0x2a0/0x3c0 [ 72.585952][ T7031] do_mmap+0x849/0x1160 [ 72.590095][ T7031] vm_mmap_pgoff+0x197/0x200 [ 72.594701][ T7031] ? randomize_stack_top+0x100/0x100 [ 72.599969][ T7031] ? ksys_dup3+0x3c0/0x3c0 [ 72.604414][ T7031] ksys_mmap_pgoff+0x457/0x5b0 [ 72.609161][ T7031] ? find_mergeable_anon_vma+0x2c0/0x2c0 [ 72.614774][ T7031] ? trace_hardirqs_off_caller+0x55/0x230 [ 72.620496][ T7031] do_fast_syscall_32+0x270/0xe90 [ 72.625534][ T7031] entry_SYSENTER_compat+0x70/0x7f [ 72.632223][ T7031] Kernel Offset: disabled [ 72.636649][ T7031] Rebooting in 86400 seconds..