------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2732! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 136 Comm: kworker/u4:1 Not tainted 5.15.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: writeback wb_workfn (flush-7:0) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_writepages+0x3590/0x3594 fs/ext4/inode.c:2731 lr : ext4_writepages+0x3590/0x3594 fs/ext4/inode.c:2731 sp : ffff800019fe6d60 x29: ffff800019fe7140 x28: ffff800019fe7040 x27: 1ffff000033fceb2 x26: ffff0000dc8a6038 x25: 0000000000000001 x24: dfff800000000000 x23: ffff0000cfad0000 x22: ffff800019fe6f60 x21: ffff800019fe7590 x20: ffff0000dc8a5a08 x19: 0000008410000000 x18: ffff800019fe6a40 x17: ff8080000abc1a7c x16: ffff8000082ed0d4 x15: 000000000000f261 x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000 x11: ff80800008da1638 x10: 0000000000000000 x9 : ffff800008da1638 x8 : ffff0000c23a0000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000008000000000 x0 : 0000000000000000 Call trace: ext4_writepages+0x3590/0x3594 fs/ext4/inode.c:2731 do_writepages+0x39c/0x5ec mm/page-writeback.c:2364 __writeback_single_inode+0x204/0x1afc fs/fs-writeback.c:1622 writeback_sb_inodes+0x9a0/0x17b0 fs/fs-writeback.c:1905 wb_writeback+0x4c4/0x1400 fs/fs-writeback.c:2079 wb_do_writeback fs/fs-writeback.c:2222 [inline] wb_workfn+0x454/0x11ac fs/fs-writeback.c:2263 process_one_work+0x84c/0x14b8 kernel/workqueue.c:2306 worker_thread+0x910/0x1034 kernel/workqueue.c:2453 kthread+0x37c/0x45c kernel/kthread.c:319 ret_from_fork+0x10/0x20 :870 Code: d4210000 97dc954c d4210000 97dc954a (d4210000) ---[ end trace 2fc6a849c01b632a ]---