------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2452! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 428 Comm: kworker/u4:4 Not tainted 5.10.208-syzkaller-999748-g1a7db4583e18 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2452 [inline] RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2493 [inline] RIP: 0010:ext4_writepages+0x3b44/0x3c00 fs/ext4/inode.c:2861 Code: 00 74 08 48 89 df e8 cb fa c9 ff 48 8b 3b 48 8b 74 24 28 48 8b 54 24 50 44 89 e1 45 89 f8 e8 13 d2 07 00 eb 5d e8 3c 8e 8c ff <0f> 0b e8 35 8e 8c ff eb 3b e8 2e 8e 8c ff eb 77 e8 27 8e 8c ff 31 RSP: 0018:ffffc900011c70a0 EFLAGS: 00010293 RAX: ffffffff81de1804 RBX: dffffc0000000000 RCX: ffff8881117713c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900011c7490 R08: ffffffff81ddf409 R09: ffffed1024c7d900 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900011c73b0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555557b1818 CR3: 000000010c1d3000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x12e/0x270 mm/page-writeback.c:2358 __writeback_single_inode+0xd7/0xac0 fs/fs-writeback.c:1470 writeback_sb_inodes+0x99c/0x16b0 fs/fs-writeback.c:1733 wb_writeback+0x404/0xc60 fs/fs-writeback.c:1908 wb_do_writeback fs/fs-writeback.c:2053 [inline] wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2094 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 Modules linked in: ---[ end trace fa2bf92eeff786dc ]--- RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2452 [inline] RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2493 [inline] RIP: 0010:ext4_writepages+0x3b44/0x3c00 fs/ext4/inode.c:2861 Code: 00 74 08 48 89 df e8 cb fa c9 ff 48 8b 3b 48 8b 74 24 28 48 8b 54 24 50 44 89 e1 45 89 f8 e8 13 d2 07 00 eb 5d e8 3c 8e 8c ff <0f> 0b e8 35 8e 8c ff eb 3b e8 2e 8e 8c ff eb 77 e8 27 8e 8c ff 31 RSP: 0018:ffffc900011c70a0 EFLAGS: 00010293 RAX: ffffffff81de1804 RBX: dffffc0000000000 RCX: ffff8881117713c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900011c7490 R08: ffffffff81ddf409 R09: ffffed1024c7d900 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900011c73b0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0013b7000 CR3: 000000010c1b8000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400