------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2749! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 48 Comm: kworker/u4:2 Not tainted 5.10.214-syzkaller-00114-gd3c4d815bf09 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:ext4_writepages+0x3bdf/0x3c00 fs/ext4/inode.c:2748 Code: 54 8c ff 31 ff 89 de e8 cf 54 8c ff 45 84 f6 75 27 e8 35 52 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 21 52 8c ff <0f> 0b e8 1a 52 8c ff e8 d1 25 22 ff eb 9b e8 0e 52 8c ff e8 c5 25 RSP: 0018:ffffc900009d70a0 EFLAGS: 00010293 RAX: ffffffff81de597f RBX: 0000008000000000 RCX: ffff888101bb4f00 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900009d7490 R08: ffffffff81de23f3 R09: ffffed1027bf2185 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffffc900009d77d0 R14: 000000c410000000 R15: ffffc900009d7360 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e97d6bd58 CR3: 0000000114f4e000 CR4: 00000000003506a0 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 3506b02763340985 ]--- RIP: 0010:ext4_writepages+0x3bdf/0x3c00 fs/ext4/inode.c:2748 Code: 54 8c ff 31 ff 89 de e8 cf 54 8c ff 45 84 f6 75 27 e8 35 52 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 21 52 8c ff <0f> 0b e8 1a 52 8c ff e8 d1 25 22 ff eb 9b e8 0e 52 8c ff e8 c5 25 RSP: 0018:ffffc900009d70a0 EFLAGS: 00010293 RAX: ffffffff81de597f RBX: 0000008000000000 RCX: ffff888101bb4f00 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900009d7490 R08: ffffffff81de23f3 R09: ffffed1027bf2185 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffffc900009d77d0 R14: 000000c410000000 R15: ffffc900009d7360 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8229d6e038 CR3: 000000000660f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400