------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2722! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.15.161-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: writeback wb_workfn (flush-7:0) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_writepages+0x35d8/0x36fc fs/ext4/inode.c:2721 lr : ext4_writepages+0x35d8/0x36fc fs/ext4/inode.c:2721 sp : ffff800018966d80 x29: ffff800018967140 x28: ffff800018967040 x27: ffff800018967590 x26: ffff0000e305a468 x25: 0000000000000001 x24: ffff800011be6300 x23: ffff0000db29c000 x22: ffff800018966f60 x21: dfff800000000000 x20: ffff0000e3059e38 x19: 000000c410000000 x18: ffff800018967a94 x17: 0000000000000000 x16: ffff8000082eb0b0 x15: 0000000000000012 x14: 1ffff0000292a06a x13: dfff800000000000 x12: 00000000c27ce692 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000c0950000 x8 : ffff800008d9c3f8 x7 : ffff800008d98fb0 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000008000000000 x0 : 0000000000000000 Call trace: ext4_writepages+0x35d8/0x36fc fs/ext4/inode.c:2721 do_writepages+0x39c/0x5ec mm/page-writeback.c:2364 __writeback_single_inode+0x148/0x13a4 fs/fs-writeback.c:1647 writeback_sb_inodes+0x94c/0x1654 fs/fs-writeback.c:1930 wb_writeback+0x3fc/0xfc8 fs/fs-writeback.c:2104 wb_do_writeback fs/fs-writeback.c:2247 [inline] wb_workfn+0x3a4/0x1070 fs/fs-writeback.c:2288 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310