RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc14c0916d4 R13: 00000000004bdc47 R14: 00000000004cd658 R15: 0000000000000005 device nr0 entered promiscuous mode syz-executor0 (9565) used greatest stack depth: 8328 bytes left Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 PID: 9548 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #152 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_irq+0xb9/0x140 kernel/sched/core.c:3699 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline] RIP: 0010:queue_work_on+0x17a/0x1e0 kernel/workqueue.c:1490 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 73 48 83 3d e2 b7 00 08 00 74 44 e8 5b 3b 2e 00 48 89 df 57 9d <0f> 1f 44 00 00 eb a6 e8 4a 3b 2e 00 8b 7d d4 4c 89 e2 4c 89 fe 41 RSP: 0018:ffff8881add6bc08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 0000000000000246 RCX: ffffc90005e6a000 RDX: 0000000000040000 RSI: ffffffff81514915 RDI: 0000000000000246 RBP: ffff8881add6bc38 R08: ffff888184c4ec58 R09: 0000000000000006 R10: 0000000000000000 R11: ffff888184c4e340 R12: 0000000000000200 R13: 0000000000000001 R14: ffffed1035bad700 R15: ffff8881d9a4e040 drain_all_pages+0x382/0x680 mm/page_alloc.c:2676 __alloc_pages_direct_reclaim mm/page_alloc.c:3809 [inline] __alloc_pages_slowpath+0xb61/0x2de0 mm/page_alloc.c:4185 __alloc_pages_nodemask+0xad8/0xea0 mm/page_alloc.c:4393 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1409 [inline] cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677 fallback_alloc+0x204/0x2e0 mm/slab.c:3219 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287 __do_cache_alloc mm/slab.c:3356 [inline] slab_alloc mm/slab.c:3384 [inline] kmem_cache_alloc+0x1f8/0x730 mm/slab.c:3552 mempool_alloc_slab+0x44/0x60 mm/mempool.c:505 mempool_alloc+0x193/0x4a0 mm/mempool.c:385 bio_alloc_bioset+0x3a8/0x700 block/bio.c:489 bio_clone_fast+0x26/0x110 block/bio.c:629 bio_split+0x86/0x260 block/bio.c:1801 blk_bio_segment_split block/blk-merge.c:231 [inline] blk_queue_split+0xa22/0x20f0 block/blk-merge.c:262 blk_mq_make_request+0x2e9/0x2590 block/blk-mq.c:1840 generic_make_request+0x9b1/0x18a0 block/blk-core.c:2452 submit_bio+0xba/0x460 block/blk-core.c:2560 mpage_bio_submit fs/mpage.c:66 [inline] do_mpage_readpage+0x169a/0x24d0 fs/mpage.c:316 mpage_readpages+0x56c/0x950 fs/mpage.c:404 blkdev_readpages+0x2c/0x40 fs/block_dev.c:578 read_pages+0x13a/0x680 mm/readahead.c:123 __do_page_cache_readahead+0x499/0x810 mm/readahead.c:209 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+0x86/0xc0 arch/x86/lib/copy_user_64.S:65 Code: 4c 8b 5e 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 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 RSP: 0018:ffff8881add6e918 EFLAGS: 00010203 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000007 RSI: 0000000020000181 RDI: ffff8881be8abe10 RBP: ffff8881add6e950 R08: ffff888184c4e340 R09: ffff8881d1832780 R10: 000000000000135a R11: 0000000000000000 R12: 000000000000000f R13: ffff8881be8abe10 R14: 0000000020000000 R15: 000000000000000f kvm_vcpu_read_guest_page+0x40/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1763 kvm_fetch_guest_virt+0x149/0x1c0 arch/x86/kvm/x86.c:5028 __do_insn_fetch_bytes+0x45b/0x950 arch/x86/kvm/emulate.c:896 x86_decode_insn+0x1544/0x54c0 arch/x86/kvm/emulate.c:5116 x86_emulate_instruction+0x855/0x1ff0 arch/x86/kvm/x86.c:6324 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: Bad RIP value. RSP: 002b:00007fc66f578c78 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: 00007fc66f5796d4 R13: 00000000004c0525 R14: 00000000004d15a0 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..