------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2745! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.15.119-syzkaller-01849-g879959450ec7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_writepages+0x3fe6/0x4000 fs/ext4/inode.c:2744 Code: 89 de e8 8d 80 88 ff 45 84 f6 75 2c e8 f3 7d 88 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e4 c5 ff ff e8 da 7d 88 ff <0f> 0b e8 d3 7d 88 ff e8 4a 20 19 ff eb 9b e8 c7 7d 88 ff e8 3e 20 RSP: 0018:ffffc900002ef000 EFLAGS: 00010293 RAX: ffffffff81e76126 RBX: 0000008000000000 RCX: ffff888100173b40 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900002ef410 R08: ffffffff81e75896 R09: ffffed1021fc0181 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900002ef7d0 R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00057bff8 CR3: 000000011d882000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x40e/0x670 mm/page-writeback.c:2366 __writeback_single_inode+0xdf/0xa70 fs/fs-writeback.c:1625 writeback_sb_inodes+0xb2e/0x1910 fs/fs-writeback.c:1908 wb_writeback+0x3b9/0x9e0 fs/fs-writeback.c:2082 wb_do_writeback fs/fs-writeback.c:2225 [inline] wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2266 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2314 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2461 kthread+0x421/0x510 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace cbb305bc6c1cde4d ]--- RIP: 0010:ext4_writepages+0x3fe6/0x4000 fs/ext4/inode.c:2744 Code: 89 de e8 8d 80 88 ff 45 84 f6 75 2c e8 f3 7d 88 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e4 c5 ff ff e8 da 7d 88 ff <0f> 0b e8 d3 7d 88 ff e8 4a 20 19 ff eb 9b e8 c7 7d 88 ff e8 3e 20 RSP: 0018:ffffc900002ef000 EFLAGS: 00010293 RAX: ffffffff81e76126 RBX: 0000008000000000 RCX: ffff888100173b40 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900002ef410 R08: ffffffff81e75896 R09: ffffed1021fc0181 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900002ef7d0 R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faab1602000 CR3: 0000000122c0f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400