------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 8239 at kernel/locking/lockdep.c:167 hlock_class kernel/locking/lockdep.c:167 [inline] WARNING: CPU: 0 PID: 8239 at kernel/locking/lockdep.c:167 mark_lock+0x8d2/0x1650 kernel/locking/lockdep.c:3643 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8239 Comm: blkid Not tainted 5.4.0-syzkaller #0 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+0x1fb/0x318 lib/dump_stack.c:118 panic+0x264/0x7a9 kernel/panic.c:221 __warn+0x20e/0x210 kernel/panic.c:582 report_bug+0x1b6/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:hlock_class kernel/locking/lockdep.c:167 [inline] RIP: 0010:mark_lock+0x8d2/0x1650 kernel/locking/lockdep.c:3643 Code: 0f 85 af 02 00 00 83 3d 8f 7a 65 07 00 0f 85 7a f8 ff ff 31 db 48 c7 c7 74 71 36 88 48 c7 c6 7c 2f 3b 88 31 c0 e8 be f4 ec ff <0f> 0b e9 6e f8 ff ff 4c 69 f3 b0 00 00 00 48 c7 c0 d0 f4 1c 89 4c RSP: 0018:ffff8880aea09500 EFLAGS: 00010046 RAX: f46397475521bc00 RBX: 0000000000000000 RCX: ffff8880592a81c0 RDX: 0000000000000502 RSI: 0000000000000001 RDI: ffffffff815cbfd4 RBP: ffff8880aea09600 R08: ffffffff8178fd6a R09: fffffbfff111a493 R10: fffffbfff111a493 R11: 0000000000000000 R12: 1ffff1100b255172 R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000010 mark_usage kernel/locking/lockdep.c:3566 [inline] __lock_acquire+0x5a0/0x1be0 kernel/locking/lockdep.c:3909 lock_acquire+0x158/0x250 kernel/locking/lockdep.c:4487 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] __netif_tx_lock include/linux/netdevice.h:3897 [inline] sch_direct_xmit+0x154/0xd50 net/sched/sch_generic.c:311 __dev_xmit_skb net/core/dev.c:3400 [inline] __dev_queue_xmit+0x1bf7/0x3010 net/core/dev.c:3761 dev_queue_xmit+0x17/0x20 net/core/dev.c:3825 neigh_hh_output include/net/neighbour.h:500 [inline] neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0xff2/0x13b0 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x693/0x8c0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x52/0x1e0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x26f/0x370 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] mld_sendpack+0x770/0xb80 net/ipv6/mcast.c:1682 mld_send_cr net/ipv6/mcast.c:1978 [inline] mld_ifc_timer_expire+0x820/0xb70 net/ipv6/mcast.c:2477 call_timer_fn+0x95/0x170 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers+0x7b6/0x990 kernel/time/timer.c:1773 run_timer_softirq+0x4a/0x90 kernel/time/timer.c:1786 __do_softirq+0x333/0x7c4 arch/x86/include/asm/paravirt.h:766 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x227/0x230 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x113/0x280 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:70 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:102 Code: 4a 07 48 89 de e8 34 d1 38 00 5b 5d c3 90 48 8b 04 24 65 48 8b 0c 25 c0 fd 01 00 65 8b 15 68 86 8e 7e f7 c2 00 01 1f 00 75 2c <8b> 91 f8 12 00 00 83 fa 02 75 21 48 8b 91 00 13 00 00 48 8b 32 48 RSP: 0018:ffff88805205fa20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffffff81a07ed8 RBX: ffff888096add280 RCX: ffff8880592a81c0 RDX: 0000000080000000 RSI: 00007ffdd78ba000 RDI: ffff888096add280 RBP: ffff88805205fa50 R08: ffffffff81b6fea4 R09: fffffbfff117cd55 R10: fffffbfff117cd55 R11: 0000000000000000 R12: 00007ffdd78ba000 R13: 00007ffdd78bb000 R14: 00007ffdd78ba000 R15: ffff8880947f0108 shift_arg_pages fs/exec.c:642 [inline] setup_arg_pages+0x51c/0x950 fs/exec.c:767 load_elf_binary+0x92f/0x3670 fs/binfmt_elf.c:865 search_binary_handler+0x1a5/0x660 fs/exec.c:1659 exec_binprm fs/exec.c:1702 [inline] __do_execve_file+0x1573/0x1cc0 fs/exec.c:1822 do_execveat_common fs/exec.c:1868 [inline] do_execve fs/exec.c:1885 [inline] __do_sys_execve fs/exec.c:1961 [inline] __se_sys_execve fs/exec.c:1956 [inline] __x64_sys_execve+0x94/0xb0 fs/exec.c:1956 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb1b380a207 Code: Bad RIP value. RSP: 002b:00007ffc3dcf43b8 EFLAGS: 00000206 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fb1b380a207 RDX: 00000000014e1500 RSI: 00007ffc3dcf44b0 RDI: 00007ffc3dcf54c0 RBP: 0000000000625500 R08: 0000000000001eaf R09: 0000000000001eaf R10: 0000000000000000 R11: 0000000000000206 R12: 00000000014e1500 R13: 0000000000000007 R14: 00000000014d0250 R15: 0000000000000005 Kernel Offset: disabled Rebooting in 86400 seconds..