8021q: adding VLAN 0 to HW filter on device batadv0
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
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kernel BUG at mm/filemap.c:1283!
kobject: 'loop3' (000000008e7603f3): kobject_uevent_env
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.0.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:end_page_writeback+0x2bd/0x300 mm/filemap.c:1283
Code: fe ff ff 4c 89 ef e8 a2 53 19 00 e9 00 fe ff ff 48 89 df e8 95 53 19 00 e9 01 ff ff ff 4c 89 e7 e8 88 53 19 00 e9 37 fe ff ff <0f> 0b 4c 89 ef e8 79 53 19 00 e9 51 fe ff ff 4c 89 e7 e8 6c 53 19
RSP: 0018:ffff8880a98b7ac8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea0001ff5800 RCX: 1ffff11015315156
RDX: 1ffffffff10a453e RSI: 1ffff11015315158 RDI: 0000000000000282
RBP: ffff8880a98b7ae0 R08: 0000000000000000 R09: 0000000000000001
R10: ffffed1015d45bcf R11: ffff8880aea2de7b R12: ffffea0001ff5808
R13: ffffea0001ff5800 R14: dffffc0000000000 R15: ffff88808eb952c0
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 00000000a7fec000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 page_endio+0x244/0x4c0 mm/filemap.c:1313
 mpage_end_io+0x14f/0x2d0 fs/mpage.c:55
 bio_endio+0x459/0x830 block/bio.c:1802
 req_bio_endio block/blk-core.c:196 [inline]
 blk_update_request+0x248/0x9e0 block/blk-core.c:1454
 blk_mq_end_request+0x54/0x4e0 block/blk-mq.c:562
 lo_complete_rq+0x1af/0x270 drivers/block/loop.c:485
 blk_done_softirq+0x2c6/0x490 block/blk-softirq.c:37
 __do_softirq+0x260/0x958 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:654
 smpboot_thread_fn+0x55f/0x860 kernel/smpboot.c:164
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 kthread+0x324/0x3e0 kernel/kthread.c:246
downgrading a read lock
WARNING: CPU: 1 PID: 7278 at kernel/locking/lockdep.c:3553 __lock_downgrade kernel/locking/lockdep.c:3553 [inline]
WARNING: CPU: 1 PID: 7278 at kernel/locking/lockdep.c:3553 lock_downgrade+0x47b/0x7f0 kernel/locking/lockdep.c:3816