------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2453! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17275 Comm: kworker/u4:3 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:mpage_map_one_extent+0x5df/0x680 fs/ext4/inode.c:2453 Code: f6 48 0f a3 05 62 7b c1 04 0f 92 c3 40 0f 92 c6 31 ff e8 b4 a3 8f ff 84 db 75 11 e8 9b a0 8f ff e9 74 fa ff ff e8 91 a0 8f ff <0f> 0b 65 ff 05 64 ec 24 7e 48 c7 c0 68 cf 9c 86 48 c1 e8 03 42 80 RSP: 0018:ffffc90009c17068 EFLAGS: 00010293 RAX: ffffffff81dd811f RBX: 0000000000000000 RCX: ffff888191db62c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90009c170b0 R08: ffffffff81dd7fa8 R09: ffffed10337493d5 R10: ffffed10337493d5 R11: 1ffff110337493d4 R12: 0000000000000000 R13: ffffc90009c173b4 R14: 0000000000000000 R15: 1ffff92001382e77 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc1b8b7c000 CR3: 000000011d7a8000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mpage_map_and_submit_extent fs/ext4/inode.c:2494 [inline] ext4_writepages+0x15e9/0x3710 fs/ext4/inode.c:2862 do_writepages+0x13a/0x280 mm/page-writeback.c:2358 __writeback_single_inode+0xb8/0x6e0 fs/fs-writeback.c:1467 writeback_sb_inodes+0x999/0x1700 fs/fs-writeback.c:1730 __writeback_inodes_wb fs/fs-writeback.c:1801 [inline] wb_writeback+0x4f4/0xc20 fs/fs-writeback.c:1907 wb_check_old_data_flush fs/fs-writeback.c:2009 [inline] wb_do_writeback+0x995/0xbd0 fs/fs-writeback.c:2062 wb_workfn+0xf8/0x3f0 fs/fs-writeback.c:2091 process_one_work+0x726/0xc10 kernel/workqueue.c:2296 worker_thread+0xb27/0x1550 kernel/workqueue.c:2442 kthread+0x349/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 Modules linked in: ---[ end trace 51dac00e780d5a44 ]--- RIP: 0010:mpage_map_one_extent+0x5df/0x680 fs/ext4/inode.c:2453 Code: f6 48 0f a3 05 62 7b c1 04 0f 92 c3 40 0f 92 c6 31 ff e8 b4 a3 8f ff 84 db 75 11 e8 9b a0 8f ff e9 74 fa ff ff e8 91 a0 8f ff <0f> 0b 65 ff 05 64 ec 24 7e 48 c7 c0 68 cf 9c 86 48 c1 e8 03 42 80 RSP: 0018:ffffc90009c17068 EFLAGS: 00010293 RAX: ffffffff81dd811f RBX: 0000000000000000 RCX: ffff888191db62c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90009c170b0 R08: ffffffff81dd7fa8 R09: ffffed10337493d5 R10: ffffed10337493d5 R11: 1ffff110337493d4 R12: 0000000000000000 R13: ffffc90009c173b4 R14: 0000000000000000 R15: 1ffff92001382e77 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc97fdf838 CR3: 000000010c990000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400