list_add corruption. prev->next should be next (ffff888122a51108), but was 0000000000058000. (prev=ffff88810e236d50). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:30! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 0 PID: 45 Comm: kworker/u4:2 Not tainted 6.5.0-rc5-syzkaller-00182-g25aa0bebba72-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Workqueue: btrfs-qgroup-rescan btrfs_work_helper RIP: 0010:__list_add_valid+0x74/0x90 lib/list_debug.c:30 Code: e2 fe 0f 0b 48 89 c1 48 c7 c7 68 ff af 85 e8 a3 d7 e2 fe 0f 0b 48 89 d1 48 89 c6 4c 89 c2 48 c7 c7 c0 ff af 85 e8 8c d7 e2 fe <0f> 0b 48 89 f2 48 89 c1 48 89 fe 48 c7 c7 18 00 b0 85 e8 75 d7 e2 RSP: 0018:ffffc900001cf920 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff88810e236d50 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8131cbd0 RDI: 0000000000000001 RBP: ffff888122a51108 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 205d353454202020 R12: 0000000000000000 R13: ffff888122aec700 R14: ffff888122aec750 R15: ffff888122a510c0 FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd2648f75e8 CR3: 000000010a57a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] btrfs_ref_tree_mod+0x454/0xbb0 fs/btrfs/ref-verify.c:887 btrfs_free_tree_block+0x116/0x450 fs/btrfs/extent-tree.c:3250 __btrfs_cow_block+0x6a5/0xa30 fs/btrfs/ctree.c:601 btrfs_cow_block+0x154/0x2b0 fs/btrfs/ctree.c:712 btrfs_search_slot+0xa49/0x1770 fs/btrfs/ctree.c:2194 btrfs_update_root+0x6f/0x500 fs/btrfs/root-tree.c:137 commit_fs_roots+0x236/0x360 fs/btrfs/transaction.c:1450 btrfs_commit_transaction+0x93e/0x15c0 fs/btrfs/transaction.c:2393 btrfs_qgroup_rescan_worker+0x389/0x610 fs/btrfs/qgroup.c:3417 btrfs_work_helper+0x158/0x540 fs/btrfs/async-thread.c:314 process_one_work+0x2f1/0x640 kernel/workqueue.c:2600 worker_thread+0x5c/0x5c0 kernel/workqueue.c:2751 kthread+0x12b/0x170 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid+0x74/0x90 lib/list_debug.c:30 Code: e2 fe 0f 0b 48 89 c1 48 c7 c7 68 ff af 85 e8 a3 d7 e2 fe 0f 0b 48 89 d1 48 89 c6 4c 89 c2 48 c7 c7 c0 ff af 85 e8 8c d7 e2 fe <0f> 0b 48 89 f2 48 89 c1 48 89 fe 48 c7 c7 18 00 b0 85 e8 75 d7 e2 RSP: 0018:ffffc900001cf920 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff88810e236d50 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8131cbd0 RDI: 0000000000000001 RBP: ffff888122a51108 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 205d353454202020 R12: 0000000000000000 R13: ffff888122aec700 R14: ffff888122aec750 R15: ffff888122a510c0 FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd2648f75e8 CR3: 000000010a57a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400