------------[ cut here ]------------
!rcu_read_lock_held()
WARNING: ./include/net/dst.h:326 at skb_dst_force include/net/dst.h:326 [inline], CPU#0: ksoftirqd/0/15
WARNING: ./include/net/dst.h:326 at xfrm_output_one net/xfrm/xfrm_output.c:549 [inline], CPU#0: ksoftirqd/0/15
WARNING: ./include/net/dst.h:326 at xfrm_output_resume+0x41d9/0x64e0 net/xfrm/xfrm_output.c:597, CPU#0: ksoftirqd/0/15
Modules linked in:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:skb_dst_force include/net/dst.h:326 [inline]
RIP: 0010:xfrm_output_one net/xfrm/xfrm_output.c:549 [inline]
RIP: 0010:xfrm_output_resume+0x41d9/0x64e0 net/xfrm/xfrm_output.c:597
Code: be b4 01 00 00 48 c7 c2 60 04 54 8d e8 e0 5a 02 f7 e9 aa fc ff ff e8 36 09 27 f7 90 0f 0b 90 e9 7e ed ff ff e8 28 09 27 f7 90 <0f> 0b 90 e9 44 e0 ff ff 48 89 df e8 27 a3 52 fa 84 c0 0f 84 e1 00
RSP: 0018:ffffc90000147660 EFLAGS: 00010246
RAX: ffffffff8aa1ffc8 RBX: 0000000000000000 RCX: ffff88801f699f40
RDX: 8000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffffc900001478f0 R08: 0000000000000100 R09: 1ffffffff237c1d7
R10: dffffc0000000000 R11: fffffbfff237c1d8 R12: dffffc0000000000
R13: ffff888033b95918 R14: ffff888066ce8790 R15: ffff888057926180
FS:  0000000000000000(0000) GS:ffff8881233fd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c341867 CR3: 00000000345f8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 iptfs_output_queued net/xfrm/xfrm_iptfs.c:2324 [inline]
 iptfs_delay_timer+0x3803/0x4310 net/xfrm/xfrm_iptfs.c:2361
 __run_hrtimer kernel/time/hrtimer.c:2079 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2136
 hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2153
 handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1133
 smpboot_thread_fn+0x5f8/0xb30 kernel/smpboot.c:162
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>