nvme nvme0: Connect Invalid Data Parameter, subsysnqn "t" ------------[ cut here ]------------ timer_delete_sync(&sdp->delay_work) && rcu_segcblist_n_cbs(&sdp->srcu_cblist) WARNING: kernel/rcu/srcutree.c:707 at cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706, CPU#0: syz.5.3599/18104 Modules linked in: CPU: 0 UID: 0 PID: 18104 Comm: syz.5.3599 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:cleanup_srcu_struct+0x3d6/0x8b0 kernel/rcu/srcutree.c:706 Code: 05 8c 00 48 83 7d 00 00 4c 8b 74 24 10 0f 85 dd 03 00 00 41 ff c5 41 83 e5 0f 41 83 fd 07 0f 86 e2 fe ff ff e9 ab 00 00 00 90 <0f> 0b 90 4c 8d b5 00 02 00 00 4c 89 f3 48 c1 eb 03 48 b8 00 00 00 RSP: 0018:ffffc900053ef778 EFLAGS: 00010206 RAX: 1ffffd1ffff8b5dd RBX: 0000607edaf90e00 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: ffffffff8e415bc5 RDI: 00000000ffffffff RBP: ffffe8ffffc5ae00 R08: ffffffff907a627f R09: 1ffffffff20f4c4f R10: dffffc0000000000 R11: fffffbfff20f4c50 R12: ffff8880773dc800 R13: 0000000000000000 R14: ffffe8ffffc5aee8 R15: 1ffffffff1cdd3de FS: 00007f2a9088b6c0(0000) GS:ffff888124cca000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555566eafa38 CR3: 000000003f3e4000 CR4: 00000000003526f0 Call Trace: blk_mq_free_tag_set+0x617/0x790 block/blk-mq.c:4976 nvme_loop_create_ctrl+0x591/0x8c0 drivers/nvme/target/loop.c:636 nvmf_create_ctrl drivers/nvme/host/fabrics.c:1361 [inline] nvmf_dev_write+0x24ca/0x2d90 drivers/nvme/host/fabrics.c:1408 vfs_write+0x296/0xba0 fs/read_write.c:685 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2a8f99e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2a9088b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2a8fc25fa0 RCX: 00007f2a8f99e159 RDX: 0000000000000014 RSI: 0000200000000400 RDI: 0000000000000003 RBP: 00007f2a8fa3506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2a8fc26038 R14: 00007f2a8fc25fa0 R15: 00007f2a8fd4fa48