------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 22905 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline]
WARNING: CPU: 0 PID: 22905 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4029 [inline]
WARNING: CPU: 0 PID: 22905 at kernel/locking/lockdep.c:183 __lock_acquire+0x183c/0x3bf0 kernel/locking/lockdep.c:4305
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 22905 Comm: syz-executor.2 Not tainted 5.7.0-rc7-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+0x12d/0x187 lib/dump_stack.c:118
 panic+0x22a/0x4e3 kernel/panic.c:221
 __warn.cold.10+0x25/0x2a kernel/panic.c:582
 report_bug+0x1b0/0x270 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:hlock_class kernel/locking/lockdep.c:183 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4029 [inline]
RIP: 0010:__lock_acquire+0x183c/0x3bf0 kernel/locking/lockdep.c:4305
Code: d2 0f 85 78 20 00 00 44 8b 1d 00 8b 89 08 45 85 db 0f 85 84 fa ff ff 48 c7 c6 60 d1 aa 87 48 c7 c7 e0 d0 aa 87 e8 6c e7 eb ff <0f> 0b e9 6a fa ff ff 4c 89 f7 e8 a5 38 ff ff 48 b8 eb 83 b5 80 46
RSP: 0018:ffffc900066ef180 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff888073d3e580 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc900066ef2a0 R08: fffffbfff11f58ed R09: fffffbfff11f58ed
R10: ffffffff88fac763 R11: fffffbfff11f58ec R12: 0000000000000000
R13: 0000000000000000 R14: ffff888073d3ee98 R15: 0000000000000000
 lock_acquire+0x209/0x9e0 kernel/locking/lockdep.c:4934
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:358 [inline]
 netif_addr_lock_bh include/linux/netdevice.h:4172 [inline]
 dev_mc_seq_show+0x35/0x210 net/core/net-procfs.c:325
 seq_read+0x834/0xe10 fs/seq_file.c:247
 pde_read fs/proc/inode.c:292 [inline]
 proc_reg_read+0x281/0x320 fs/proc/inode.c:304
 do_loop_readv_writev fs/read_write.c:715 [inline]
 do_iter_read+0x363/0x560 fs/read_write.c:936
 vfs_readv+0xc7/0x130 fs/read_write.c:1054
 kernel_readv fs/splice.c:365 [inline]
 default_file_splice_read+0x4a6/0x9e0 fs/splice.c:422
 do_splice_to+0xe9/0x130 fs/splice.c:892
 splice_direct_to_actor+0x2e0/0x960 fs/splice.c:971
 do_splice_direct+0x158/0x280 fs/splice.c:1080
 do_sendfile+0x4a9/0xe30 fs/read_write.c:1521
 __do_sys_sendfile64 fs/read_write.c:1582 [inline]
 __se_sys_sendfile64 fs/read_write.c:1568 [inline]
 __x64_sys_sendfile64+0x198/0x1e0 fs/read_write.c:1568
 do_syscall_64+0xca/0x630 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45af49
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f185769fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045af49
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 000000006f0a77bd R11: 0000000000000246 R12: 00007f18576a06d4
R13: 00000000004c9b06 R14: 00000000004e2ae0 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..