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WARNING: CPU: 1 PID: 32005 at fs/attr.c:211 notify_change2+0xae2/0xd90 fs/attr.c:211
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 32005 Comm: syz-executor.3 Not tainted 4.9.180+ #4
 ffff880195a5f430 ffffffff81b577f1 0000000000000000 ffffffff82a3a960
 00000000ffffffff 0000000000000001 0000000000000009 ffff880195a5f510
 ffffffff813fd2fa 0000000041b58ab3 ffffffff82e30d0a ffffffff813fd121
Call Trace:
 [<00000000e1530747>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000e1530747>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<00000000495924e6>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<0000000078fac1d3>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<00000000eb7c8b9f>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589
 [<000000008c4f92ad>] notify_change2+0xae2/0xd90 fs/attr.c:211
 [<00000000ceaad369>] __remove_privs fs/inode.c:1793 [inline]
 [<00000000ceaad369>] file_remove_privs+0x285/0x4b0 fs/inode.c:1815
 [<00000000d384ee21>] __generic_file_write_iter+0x157/0x530 mm/filemap.c:3010
 [<0000000097be554f>] blkdev_write_iter fs/block_dev.c:1726 [inline]
 [<0000000097be554f>] blkdev_write_iter+0x1bb/0x370 fs/block_dev.c:1706
 [<000000008e2135f7>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390
 [<000000000f1bdd74>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768
 [<000000003caa988d>] do_splice_from fs/splice.c:870 [inline]
 [<000000003caa988d>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037
 [<0000000006030cd6>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992
 [<00000000b71300cf>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080
 [<00000000715b9ac7>] do_sendfile+0x503/0xc00 fs/read_write.c:1401
 [<00000000e127d072>] SYSC_sendfile64 fs/read_write.c:1462 [inline]
 [<00000000e127d072>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1448
 [<00000000a3375966>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<00000000e192b2a8>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..