------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2609! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 5349 Comm: kworker/u8:8 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: writeback wb_workfn (flush-7:2) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_do_writepages+0x3178/0x317c fs/ext4/inode.c:2608 lr : ext4_do_writepages+0x3178/0x317c fs/ext4/inode.c:2608 sp : ffff80009f106b40 x29: ffff80009f106f20 x28: ffff80009f106fa0 x27: dfff800000000000 x26: ffff0000e0e63e20 x25: ffff0000e0e64040 x24: ffff0000d5a2e000 x23: ffff80009f107480 x22: ffff80009f106d20 x21: ffff700013e20da4 x20: 0000006210000000 x19: 0000000000000001 x18: ffff80009f107a54 x17: ffff80008f8cd000 x16: ffff8000803541a4 x15: 0000000000000006 x14: 1ffff00013e20dd4 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013e20dda x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d5cc0000 x7 : 0000000000000000 x6 : 0000000000000080 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000004000000000 x0 : 0000000000000000 Call trace: ext4_do_writepages+0x3178/0x317c fs/ext4/inode.c:2608 (P) ext4_do_writepages+0x3178/0x317c fs/ext4/inode.c:2608 (L) ext4_writepages+0x198/0x308 fs/ext4/inode.c:2813 do_writepages+0x304/0x7cc mm/page-writeback.c:2683 __writeback_single_inode+0x150/0x156c fs/fs-writeback.c:1658 writeback_sb_inodes+0x648/0x1090 fs/fs-writeback.c:1954 wb_writeback+0x3ec/0xf0c fs/fs-writeback.c:2134 wb_do_writeback fs/fs-writeback.c:2281 [inline] wb_workfn+0x38c/0x104c fs/fs-writeback.c:2321 process_one_work+0x7bc/0x1600 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 Code: d4210000 97d5ac5a d4210000 97d5ac58 (d4210000) ---[ end trace 0000000000000000 ]---