netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10586 at kernel/locking/lockdep.c:894 look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894
Modules linked in:
CPU: 1 PID: 10586 Comm: syz-executor.7 Not tainted 5.10.212 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894
Code: 24 e8 ce 02 00 00 4d 85 e4 74 2c 49 39 5c 24 40 75 eb 48 8b 45 18 49 39 84 24 b0 00 00 00 74 1a 48 81 7d 00 00 e2 14 86 74 10 <0f> 0b eb 0c e8 d1 bb 0a fe 85 c0 75 50 45 31 e4 48 83 c4 08 4c 89
RSP: 0018:ffff8880522a7590 EFLAGS: 00010002
RAX: ffffffff84535020 RBX: ffffffff871b5521 RCX: 0000000000000000
RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffff88804a0cdb10
RBP: ffff88804a0cdb10 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000246 R11: 0000000000000001 R12: ffffffff868aca40
R13: ffffffff86bf19e0 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f4692acb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d427000 CR3: 00000000407e6000 CR4: 0000000000350ee0
Call Trace:
 register_lock_class+0xbb/0x17b0 kernel/locking/lockdep.c:1244
 __lock_acquire+0x102/0x5b00 kernel/locking/lockdep.c:4834
 lock_acquire kernel/locking/lockdep.c:5566 [inline]
 lock_acquire+0x197/0x470 kernel/locking/lockdep.c:5531
 down_write_nested+0x96/0x160 kernel/locking/rwsem.c:1667
 ext4_double_down_write_data_sem fs/ext4/move_extent.c:58 [inline]
 ext4_move_extents+0x90d/0x3050 fs/ext4/move_extent.c:610
 __ext4_ioctl+0x302e/0x4190 fs/ext4/ioctl.c:999
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x62/0xc7
RIP: 0033:0x7f4695555b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4692acb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4695668f60 RCX: 00007f4695555b19
RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000005
RBP: 00007f46955aff6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8af0c50f R14: 00007f4692acb300 R15: 0000000000022000
irq event stamp: 1767
hardirqs last  enabled at (1767): [<ffffffff83e4daed>] syscall_enter_from_user_mode+0x1d/0x50 kernel/entry/common.c:98
hardirqs last disabled at (1766): [<ffffffff83e49abf>] do_syscall_64+0xf/0x40 arch/x86/entry/common.c:41
softirqs last  enabled at (1618): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (1611): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
---[ end trace 37e2b2255aa7e262 ]---