------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2560! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5105 Comm: kworker/u4:0 Not tainted 6.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_do_writepages+0x3c84/0x3c90 fs/ext4/inode.c:2559 Code: c7 b0 d2 4c 8d 4c 89 f2 e8 79 ef 35 02 e9 ab fb ff ff e8 5f 4a 4c ff 0f 0b e8 58 4a 4c ff 0f 0b e8 31 7c 8b 08 e8 4c 4a 4c ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 RSP: 0018:ffffc90003cd6e60 EFLAGS: 00010293 RAX: ffffffff8241c024 RBX: 0000004000000000 RCX: ffff8880214ebb80 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc90003cd71d0 R08: ffffffff824188b0 R09: 1ffff1100e4cca0a R10: dffffc0000000000 R11: ffffed100e4cca0b R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff8880726652b0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe07d4f4d10 CR3: 000000000d130000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0x203/0x3e0 fs/ext4/inode.c:2764 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553 __writeback_single_inode+0x155/0xfa0 fs/fs-writeback.c:1603 writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894 wb_writeback+0x44d/0xc60 fs/fs-writeback.c:2070 wb_do_writeback fs/fs-writeback.c:2217 [inline] wb_workfn+0x400/0xff0 fs/fs-writeback.c:2257 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0x90f/0x1400 kernel/workqueue.c:2703 worker_thread+0xa5f/0xff0 kernel/workqueue.c:2784 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_do_writepages+0x3c84/0x3c90 fs/ext4/inode.c:2559 Code: c7 b0 d2 4c 8d 4c 89 f2 e8 79 ef 35 02 e9 ab fb ff ff e8 5f 4a 4c ff 0f 0b e8 58 4a 4c ff 0f 0b e8 31 7c 8b 08 e8 4c 4a 4c ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 RSP: 0018:ffffc90003cd6e60 EFLAGS: 00010293 RAX: ffffffff8241c024 RBX: 0000004000000000 RCX: ffff8880214ebb80 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc90003cd71d0 R08: ffffffff824188b0 R09: 1ffff1100e4cca0a R10: dffffc0000000000 R11: ffffed100e4cca0b R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff8880726652b0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556c587f8 CR3: 000000007322b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400