------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2744! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5261 Comm: kworker/u4:10 Not tainted 6.1.0-rc8-next-20221207-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:ext4_writepages+0x2556/0x3dc0 fs/ext4/inode.c:2744 Code: e1 be 00 10 00 00 4c 89 ef 48 d3 ee ba 01 00 00 00 e8 4e 1d fe ff 83 c0 01 89 84 24 c4 00 00 00 e9 46 e1 ff ff e8 4a 54 5c ff <0f> 0b e8 43 54 5c ff 44 0f b6 a4 24 eb 00 00 00 89 5c 24 08 e9 79 RSP: 0018:ffffc90004e0f378 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888079e9d7c0 RSI: ffffffff82254eb6 RDI: 0000000000000007 RBP: ffff888044fc5a98 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000080 R12: 0000000000000001 R13: ffff888044fc5cf8 R14: ffffc90004e0f970 R15: ffff8880210f6000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30f39000 CR3: 00000000413e3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x1af/0x690 mm/page-writeback.c:2581 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1595 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1886 wb_writeback+0x2c5/0xd70 fs/fs-writeback.c:2060 wb_do_writeback fs/fs-writeback.c:2203 [inline] wb_workfn+0x2e0/0x12f0 fs/fs-writeback.c:2243 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_writepages+0x2556/0x3dc0 fs/ext4/inode.c:2744 Code: e1 be 00 10 00 00 4c 89 ef 48 d3 ee ba 01 00 00 00 e8 4e 1d fe ff 83 c0 01 89 84 24 c4 00 00 00 e9 46 e1 ff ff e8 4a 54 5c ff <0f> 0b e8 43 54 5c ff 44 0f b6 a4 24 eb 00 00 00 89 5c 24 08 e9 79 RSP: 0018:ffffc90004e0f378 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888079e9d7c0 RSI: ffffffff82254eb6 RDI: 0000000000000007 RBP: ffff888044fc5a98 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000080 R12: 0000000000000001 R13: ffff888044fc5cf8 R14: ffffc90004e0f970 R15: ffff8880210f6000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3252a000 CR3: 000000002a8f0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400