random: crng init done
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 2035 Comm: syz-executor032 Not tainted 4.9.194+ #0
task: 000000001f141c5c task.stack: 0000000059c8b67c
RIP: 0010:[<ffffffff81ae5d7a>]  [<000000007d39d6d0>] bdev_get_queue include/linux/blkdev.h:847 [inline]
RIP: 0010:[<ffffffff81ae5d7a>]  [<000000007d39d6d0>] blk_get_backing_dev_info+0x4a/0x70 block/blk-core.c:118
RSP: 0018:ffff8801c4a6f6c8  EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1003894df0a
RDX: 00000000000000a6 RSI: ffffffff81ae5d3d RDI: 0000000000000530
RBP: ffff8801c4a6f6d0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffffea00075b2c80
R13: ffff8801d9196548 R14: ffff8801d9196350 R15: ffffffff833f1db8
FS:  0000000000703880(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f98bd8d3000 CR3: 00000001d4162000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801da49a200 ffff8801c4a6f710 ffffffff8143e202 ffff8801d9196548
 ffff8801d9196548 ffffea00075b2c80 ffffea00075b2ca0 ffff8801d9196548
 0000000000000000 ffff8801c4a6f740 ffffffff8144a790 dffffc0000000000
Call Trace:
 [<0000000020c9aae3>] inode_to_bdi include/linux/backing-dev.h:186 [inline]
 [<0000000020c9aae3>] mapping_cap_account_dirty include/linux/backing-dev.h:234 [inline]
 [<0000000020c9aae3>] cancel_dirty_page+0x1a2/0x3d0 mm/page-writeback.c:2609
 [<000000007fde0a03>] truncate_complete_page mm/truncate.c:126 [inline]
 [<000000007fde0a03>] truncate_inode_page+0x130/0x260 mm/truncate.c:167
 [<0000000089046636>] truncate_inode_pages_range+0x20e/0xfe0 mm/truncate.c:291
 [<000000008df902f4>] truncate_inode_pages mm/truncate.c:401 [inline]
 [<000000008df902f4>] truncate_inode_pages_final+0x81/0xc0 mm/truncate.c:452
 [<0000000025875e83>] bdev_evict_inode+0x21/0x190 fs/block_dev.c:639
 [<000000002f59212f>] evict+0x2e9/0x630 fs/inode.c:553
 [<00000000c3f16f3c>] iput_final fs/inode.c:1516 [inline]
 [<00000000c3f16f3c>] iput fs/inode.c:1543 [inline]
 [<00000000c3f16f3c>] iput+0x370/0x900 fs/inode.c:1528
 [<0000000099edeeda>] bdput fs/block_dev.c:775 [inline]
 [<0000000099edeeda>] bd_forget+0xf0/0x1a0 fs/block_dev.c:826
 [<00000000eeca771f>] evict+0x485/0x630 fs/inode.c:559
 [<00000000c3f16f3c>] iput_final fs/inode.c:1516 [inline]
 [<00000000c3f16f3c>] iput fs/inode.c:1543 [inline]
 [<00000000c3f16f3c>] iput+0x370/0x900 fs/inode.c:1528
 [<0000000059282f60>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369
 [<00000000df53004a>] __dentry_kill+0x333/0x580 fs/dcache.c:571
 [<00000000ee994bd5>] dentry_kill fs/dcache.c:612 [inline]
 [<00000000ee994bd5>] dput.part.0+0x5d9/0x7c0 fs/dcache.c:829
 [<00000000e60c57f5>] dput fs/dcache.c:791 [inline]
 [<00000000e60c57f5>] do_one_tree+0x44/0x50 fs/dcache.c:1483
 [<0000000035a43dd8>] shrink_dcache_for_umount+0x67/0x160 fs/dcache.c:1497
 [<00000000e9bd84de>] generic_shutdown_super+0x6d/0x300 fs/super.c:432
 [<00000000a6fc5441>] kill_anon_super+0x3f/0x60 fs/super.c:978
 [<00000000875b0e0b>] fuse_kill_sb_anon+0x42/0x50 fs/fuse/inode.c:1223
 [<00000000237589f0>] deactivate_locked_super+0x79/0xe0 fs/super.c:320
 [<00000000bd12b72f>] deactivate_super fs/super.c:351 [inline]
 [<00000000bd12b72f>] deactivate_super+0x8a/0xb0 fs/super.c:347
 [<000000005871c435>] cleanup_mnt+0xb2/0x160 fs/namespace.c:1143
 [<000000007a64c9cd>] __cleanup_mnt+0x16/0x20 fs/namespace.c:1150
 [<00000000856dfc37>] task_work_run+0x108/0x180 kernel/task_work.c:116
 [<00000000ebaf4aec>] exit_task_work include/linux/task_work.h:21 [inline]
 [<00000000ebaf4aec>] do_exit+0x78f/0x2aa0 kernel/exit.c:842
 [<0000000015a97a57>] do_group_exit+0x111/0x300 kernel/exit.c:946
 [<00000000f84040f6>] SYSC_exit_group kernel/exit.c:957 [inline]
 [<00000000f84040f6>] SyS_exit_group+0x1d/0x20 kernel/exit.c:955
 [<00000000476e9069>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<000000007cb9bbaf>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 89 fa 48 c1 ea 03 80 3c 02 00 75 35 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 30 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 17 48 8b 83 30 05 00 00 5b 5d 48 05 20 02 00 00 
RIP  [<000000007d39d6d0>] bdev_get_queue include/linux/blkdev.h:847 [inline]
RIP  [<000000007d39d6d0>] blk_get_backing_dev_info+0x4a/0x70 block/blk-core.c:118
 RSP <ffff8801c4a6f6c8>
---[ end trace 13732cc4ca92d792 ]---