------------[ cut here ]------------
WARNING: CPU: 0 PID: 28756 at fs/ext4/inode.c:3264 ext4_invalidatepage+0x109/0x3a0 fs/ext4/inode.c:3264
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 28756 Comm: syz-executor3 Not tainted 4.9.131+ #50
 ffff8801c6d4f6f0 ffffffff81b37029 ffffffff82a38c20 00000000ffffffff
 0000000000000000 0000000000000000 0000000000000cc0 ffff8801c6d4f7b0
 ffffffff813f6b25 0000000041b58ab3 ffffffff82e298d3 ffffffff813f6966
Call Trace:
 [<ffffffff81b37029>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b37029>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f6b25>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f6df4>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff810dbf4c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff816bfe19>] ext4_invalidatepage+0x109/0x3a0 fs/ext4/inode.c:3264
 [<ffffffff81440635>] do_invalidatepage mm/truncate.c:99 [inline]
 [<ffffffff81440635>] truncate_complete_page mm/truncate.c:119 [inline]
 [<ffffffff81440635>] truncate_inode_page+0x125/0x260 mm/truncate.c:167
 [<ffffffff81440ade>] truncate_inode_pages_range+0x2be/0x1060 mm/truncate.c:291
 [<ffffffff814418a4>] truncate_inode_pages+0x24/0x30 mm/truncate.c:401
 [<ffffffff816ecbe8>] swap_inode_boot_loader fs/ext4/ioctl.c:119 [inline]
 [<ffffffff816ecbe8>] ext4_ioctl+0x1be8/0x3620 fs/ext4/ioctl.c:692
 [<ffffffff81546f1c>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff81546f1c>] file_ioctl fs/ioctl.c:493 [inline]
 [<ffffffff81546f1c>] do_vfs_ioctl+0x1ac/0x11a0 fs/ioctl.c:677
 [<ffffffff81547f9f>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<ffffffff81547f9f>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff828037d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..