bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 PID: 6893 Comm: syz-executor1 Not tainted 4.20.0-rc6+ #371 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 schedule_debug kernel/sched/core.c:3285 [inline] __schedule+0x21c6/0x21d0 kernel/sched/core.c:3394 preempt_schedule_common+0x1f/0xe0 kernel/sched/core.c:3596 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3622 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:176 spin_unlock include/linux/spinlock.h:369 [inline] page_vma_mapped_walk_done include/linux/rmap.h:220 [inline] not_found mm/page_vma_mapped.c:12 [inline] page_vma_mapped_walk+0x2ec/0x27c0 mm/page_vma_mapped.c:228 page_referenced_one+0x2cb/0x840 mm/rmap.c:764 rmap_walk_file+0x80a/0x1190 mm/rmap.c:1879 rmap_walk+0x22c/0x350 mm/rmap.c:1897 page_referenced+0x7d1/0xaa0 mm/rmap.c:874 page_check_references mm/vmscan.c:1024 [inline] shrink_page_list+0x4aab/0xccd0 mm/vmscan.c:1264 shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1963 shrink_list mm/vmscan.c:2275 [inline] shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2540 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2755 shrink_zones mm/vmscan.c:2987 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264 __perform_reclaim mm/page_alloc.c:3773 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline] __alloc_pages_slowpath+0xa48/0x2de0 mm/page_alloc.c:4185 __alloc_pages_nodemask+0xad8/0xea0 mm/page_alloc.c:4393 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924 __do_page_cache_readahead+0x2af/0x810 mm/readahead.c:193 ra_submit mm/internal.h:66 [inline] do_sync_mmap_readahead mm/filemap.c:2371 [inline] filemap_fault+0xf4e/0x25f0 mm/filemap.c:2447 __do_fault+0x100/0x6b0 mm/memory.c:2996 do_read_fault mm/memory.c:3408 [inline] do_fault mm/memory.c:3534 [inline] handle_pte_fault mm/memory.c:3765 [inline] __handle_mm_fault+0x3ea6/0x5be0 mm/memory.c:3889 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926 do_user_addr_fault arch/x86/mm/fault.c:1423 [inline] __do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0010:copy_user_generic_unrolled+0x9e/0xc0 arch/x86/lib/copy_user_64.S:74 Code: 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 4c 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 <8a> 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 31 c0 0f 1f 00 c3 0f 1f RSP: 0018:ffff8881cd9de4d0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 0000000000000002 RSI: 00000000200000f9 RDI: ffff8881c00c4440 RBP: ffff8881cd9de508 R08: ffff888189ae0500 R09: ffff8881cdee4180 R10: 00000000000014b1 R11: 0000000000000000 R12: 0000000000000002 R13: ffff8881c00c4440 R14: 0000000020000000 R15: 0000000000000002 kvm_vcpu_read_guest_page arch/x86/kvm/../../../virt/kvm/kvm_main.c:1763 [inline] kvm_vcpu_read_guest+0x65/0xe0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1795 read_emulate+0x2c/0x50 arch/x86/kvm/x86.c:5232 emulator_read_write_onepage+0x4cd/0xff0 arch/x86/kvm/x86.c:5307 emulator_read_write+0x1b7/0x5a0 arch/x86/kvm/x86.c:5362 emulator_read_emulated+0x3c/0x50 arch/x86/kvm/x86.c:5389 read_emulated arch/x86/kvm/emulate.c:1408 [inline] segmented_read+0x21e/0x360 arch/x86/kvm/emulate.c:1432 emulate_pop+0x239/0x3c0 arch/x86/kvm/emulate.c:1860 em_pop_sreg+0xa8/0x260 arch/x86/kvm/emulate.c:1971 x86_emulate_insn+0x6b2/0x5020 arch/x86/kvm/emulate.c:5601 x86_emulate_instruction+0xd67/0x1ff0 arch/x86/kvm/x86.c:6367 kvm_mmu_page_fault+0x3d5/0x1ad0 arch/x86/kvm/mmu.c:5351 handle_ept_misconfig+0x12e/0x590 arch/x86/kvm/vmx.c:7752 vmx_handle_exit+0x33d/0x4630 arch/x86/kvm/vmx.c:10632 vcpu_enter_guest arch/x86/kvm/x86.c:7811 [inline] vcpu_run arch/x86/kvm/x86.c:7874 [inline] kvm_arch_vcpu_ioctl_run+0x3e47/0x7320 arch/x86/kvm/x86.c:8074 kvm_vcpu_ioctl+0x5c8/0x1150 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2596 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1da974ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1da974b6d4 R13: 00000000004c0525 R14: 00000000004d15a0 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..