------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS) WARNING: CPU: 0 PID: 7830 at kernel/locking/lockdep.c:3673 __lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7830 Comm: syz-executor.5 Not tainted 5.1.0-rc7+ #1 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:__lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673 Code: d2 0f 85 7b 1f 00 00 44 8b 3d d9 b9 07 08 45 85 ff 0f 85 20 f3 ff ff 48 c7 c6 20 41 6b 87 48 c7 c7 60 17 6b 87 e8 67 e3 eb ff <0f> 0b e9 09 f3 ff ff 0f 0b e9 41 f1 ff ff 8b 1d b5 02 06 09 85 db RSP: 0018:ffff8880ae807a98 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815afcc6 RDI: ffffed1015d00f45 RBP: ffff8880ae807bd0 R08: ffff8880a55c2580 R09: fffffbfff1133639 R10: fffffbfff1133638 R11: ffffffff8899b1c3 R12: 00000000005dfe05 R13: 000000000000003e R14: 00000000000c3e05 R15: 0000000000000000 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] __queue_work+0x99f/0x10e0 kernel/workqueue.c:1446 delayed_work_timer_fn+0x5d/0x90 kernel/workqueue.c:1616 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1358 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x44c/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:queue_work_on+0x119/0x200 kernel/workqueue.c:1522 Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 d4 00 00 00 48 83 3d 17 09 48 07 00 0f 84 96 00 00 00 e8 7c fe 25 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 6d fe 25 00 44 89 f8 48 83 c4 08 5b 41 5c 41 5d RSP: 0018:ffff888085837a90 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880a55c2580 RBX: 0000000000000293 RCX: 1ffff11014ab85c4 RDX: 0000000000000000 RSI: ffffffff814a8e64 RDI: 0000000000000293 RBP: ffff888085837ac0 R08: ffff8880a55c2580 R09: ffff8880a55c2e20 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000200 R13: ffff88808f8c6e00 R14: ffff88821b277780 R15: 0000000000000001 queue_work include/linux/workqueue.h:494 [inline] memcg_schedule_kmem_cache_create mm/memcontrol.c:2511 [inline] memcg_kmem_get_cache+0x398/0x5f0 mm/memcontrol.c:2569 slab_pre_alloc_hook mm/slab.h:425 [inline] slab_alloc mm/slab.c:3379 [inline] kmem_cache_alloc+0x186/0x6f0 mm/slab.c:3555 vm_area_alloc+0x20/0x110 kernel/fork.c:332 mmap_region+0x964/0x1770 mm/mmap.c:1757 do_mmap+0x8e2/0x1080 mm/mmap.c:1560 do_mmap_pgoff include/linux/mm.h:2348 [inline] vm_mmap_pgoff+0x1c5/0x230 mm/util.c:362 ksys_mmap_pgoff+0xf7/0x630 mm/mmap.c:1610 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458dfa Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00 RSP: 002b:00007fff6c872588 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458dfa RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000 RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..