------------[ cut here ]------------
WARNING: CPU: 1 PID: 2127 at fs/ext4/inode.c:3264 ext4_invalidatepage+0x109/0x3a0 fs/ext4/inode.c:3264
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2127 Comm: syz-executor1 Not tainted 4.9.130+ #46
 ffff8801a451f8a0 ffffffff81b36c89 ffffffff82a38c20 00000000ffffffff
 0000000000000000 0000000000000001 0000000000000cc0 ffff8801a451f960
 ffffffff813f6835 0000000041b58ab3 ffffffff82e297ab ffffffff813f6676
Call Trace:
 [<ffffffff81b36c89>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b36c89>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f6835>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f6b04>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff810dbc7c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff816bfb39>] ext4_invalidatepage+0x109/0x3a0 fs/ext4/inode.c:3264
 [<ffffffff81440345>] do_invalidatepage mm/truncate.c:99 [inline]
 [<ffffffff81440345>] truncate_complete_page mm/truncate.c:119 [inline]
 [<ffffffff81440345>] truncate_inode_page+0x125/0x260 mm/truncate.c:167
 [<ffffffff814407ee>] truncate_inode_pages_range+0x2be/0x1060 mm/truncate.c:291
 [<ffffffff81441657>] truncate_inode_pages mm/truncate.c:401 [inline]
 [<ffffffff81441657>] truncate_inode_pages_final+0x97/0xb0 mm/truncate.c:447
 [<ffffffff816e2fef>] ext4_evict_inode+0x3cf/0x1230 fs/ext4/inode.c:234
 [<ffffffff81562569>] evict+0x2d9/0x620 fs/inode.c:553
 [<ffffffff81563851>] iput_final fs/inode.c:1516 [inline]
 [<ffffffff81563851>] iput+0x371/0x900 fs/inode.c:1543
 [<ffffffff81540985>] do_unlinkat+0x4d5/0x660 fs/namei.c:4087
 [<ffffffff81541fda>] SYSC_unlink fs/namei.c:4128 [inline]
 [<ffffffff81541fda>] SyS_unlink+0x1a/0x20 fs/namei.c:4126
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82803013>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..