------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2748! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9582 Comm: kworker/u4:9 Not tainted 6.1.86-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:ext4_writepages+0x3dd9/0x3de0 fs/ext4/inode.c:2747 Code: c7 70 08 2c 8d 4c 89 f2 e8 e4 73 28 02 e9 b9 fb ff ff e8 2a b0 4f ff 0f 0b e8 23 b0 4f ff 0f 0b e8 ac 98 4f 08 e8 17 b0 4f ff <0f> 0b 0f 1f 44 00 00 41 57 41 56 41 55 41 54 53 49 89 f7 49 89 fe RSP: 0018:ffffc9000952ef40 EFLAGS: 00010293 RAX: ffffffff823adf39 RBX: 0000008000000000 RCX: ffff88807c679dc0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc9000952f330 R08: ffffffff823aa7f0 R09: ffffed100e6fda13 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffffc9000952f710 R14: 0000008410000000 R15: ffffc9000952f200 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005f524000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x3a2/0x670 mm/page-writeback.c:2469 __writeback_single_inode+0x15d/0x11e0 fs/fs-writeback.c:1612 writeback_sb_inodes+0xc2b/0x1b20 fs/fs-writeback.c:1903 wb_writeback+0x49d/0xe10 fs/fs-writeback.c:2077 wb_do_writeback fs/fs-writeback.c:2220 [inline] wb_workfn+0x427/0x1020 fs/fs-writeback.c:2260 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 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+0x3dd9/0x3de0 fs/ext4/inode.c:2747 Code: c7 70 08 2c 8d 4c 89 f2 e8 e4 73 28 02 e9 b9 fb ff ff e8 2a b0 4f ff 0f 0b e8 23 b0 4f ff 0f 0b e8 ac 98 4f 08 e8 17 b0 4f ff <0f> 0b 0f 1f 44 00 00 41 57 41 56 41 55 41 54 53 49 89 f7 49 89 fe RSP: 0018:ffffc9000952ef40 EFLAGS: 00010293 RAX: ffffffff823adf39 RBX: 0000008000000000 RCX: ffff88807c679dc0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc9000952f330 R08: ffffffff823aa7f0 R09: ffffed100e6fda13 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffffc9000952f710 R14: 0000008410000000 R15: ffffc9000952f200 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f233ccda5a1 CR3: 000000002820b000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400