------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2737! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 403 Comm: kworker/u4:3 Not tainted 6.1.57-syzkaller-1150540-g401a2769d990 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: writeback wb_workfn (flush-7:1) RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2736 Code: a6 81 ff 31 ff 89 de e8 73 a6 81 ff 45 84 f6 75 2a e8 d9 a3 81 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 c5 a3 81 ff <0f> 0b e8 be a3 81 ff e8 75 f4 0c ff e9 46 c3 ff ff e8 af a3 81 ff RSP: 0018:ffffc900030e7000 EFLAGS: 00010293 RAX: ffffffff81f38b5b RBX: 0000008000000000 RCX: ffff88811446a880 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900030e7410 R08: ffffffff81f352bb R09: ffffed10217b1ac4 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881188d0000 R13: ffff88810bd8d758 R14: 000000c410000000 R15: ffffc900030e72e0 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555708b858 CR3: 000000010f551000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x385/0x620 mm/page-writeback.c:2472 __writeback_single_inode+0xdc/0xb80 fs/fs-writeback.c:1590 writeback_sb_inodes+0xb33/0x18f0 fs/fs-writeback.c:1881 wb_writeback+0x3b9/0x9f0 fs/fs-writeback.c:2055 wb_do_writeback fs/fs-writeback.c:2198 [inline] wb_workfn+0x399/0x1030 fs/fs-writeback.c:2238 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2736 Code: a6 81 ff 31 ff 89 de e8 73 a6 81 ff 45 84 f6 75 2a e8 d9 a3 81 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 c5 a3 81 ff <0f> 0b e8 be a3 81 ff e8 75 f4 0c ff e9 46 c3 ff ff e8 af a3 81 ff RSP: 0018:ffffc900030e7000 EFLAGS: 00010293 RAX: ffffffff81f38b5b RBX: 0000008000000000 RCX: ffff88811446a880 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900030e7410 R08: ffffffff81f352bb R09: ffffed10217b1ac4 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881188d0000 R13: ffff88810bd8d758 R14: 000000c410000000 R15: ffffc900030e72e0 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb36957ef78 CR3: 00000001236c1000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400