------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2748! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 609 Comm: kworker/u8:6 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: writeback wb_workfn (flush-7:3) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_do_writepages+0x32ac/0x32b0 fs/ext4/inode.c:2747 lr : ext4_do_writepages+0x32ac/0x32b0 fs/ext4/inode.c:2747 sp : ffff80009d096c60 x29: ffff80009d097040 x28: dfff800000000000 x27: ffff80009d097460 x26: 1ffff00013a12e8c x25: 1fffe0001ad30cc8 x24: ffff80009d0970c0 x23: ffff0000ea9a9f48 x22: ffff0000d69c0000 x21: ffff0000ea9aa168 x20: 0000006210000000 x19: 0000000000000001 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008051eb44 x15: 0000000000000008 x14: 1ffff00013a12df8 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013a12e00 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c6de1e80 x7 : 0000000000000000 x6 : 0000000000000080 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000004000000000 x0 : 0000000000000000 Call trace: ext4_do_writepages+0x32ac/0x32b0 fs/ext4/inode.c:2747 (P) ext4_writepages+0x178/0x2a0 fs/ext4/inode.c:2953 do_writepages+0x270/0x468 mm/page-writeback.c:2636 __writeback_single_inode+0x15c/0x13e8 fs/fs-writeback.c:1680 writeback_sb_inodes+0x558/0xe38 fs/fs-writeback.c:1976 wb_writeback+0x3cc/0xd70 fs/fs-writeback.c:2156 wb_do_writeback fs/fs-writeback.c:2303 [inline] wb_workfn+0x338/0xdc0 fs/fs-writeback.c:2343 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 Code: d4210000 97d99b06 d4210000 97d99b04 (d4210000) ---[ end trace 0000000000000000 ]---