=====================================================
BUG: KMSAN: uninit-value in skb_trim+0x1fc/0x290
 skb_trim+0x1fc/0x290
 ath9k_htc_rx_msg+0x8b2/0xbc0
 ath9k_hif_usb_rx_cb+0x1745/0x1e30
 __usb_hcd_giveback_urb+0x6c9/0x930
 usb_hcd_giveback_urb+0x1e6/0x7c0
 dummy_timer+0xe82/0x4fd0
 call_timer_fn+0x85/0x550
 expire_timers+0x2f0/0x6c0
 __run_timers+0x6dd/0xb00
 run_timer_softirq+0x75/0xf0
 __do_softirq+0x206/0x809
 invoke_softirq+0xa8/0x130
 irq_exit_rcu+0x79/0x130
 sysvec_apic_timer_interrupt+0x9a/0xc0
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 __sanitizer_cov_trace_pc+0x8/0x60
 inet_twsk_purge+0x6e8/0xb40
 tcp_sk_exit_batch+0x51/0x170
 cleanup_net+0xe89/0x1a70
 process_one_work+0xe67/0x1860
 worker_thread+0x1100/0x21f0
 kthread+0x3c7/0x500
 ret_from_fork+0x1f/0x30

Uninit was created at:
 __kmalloc_node_track_caller+0xdee/0x14e0
 __alloc_skb+0x526/0xf50
 __netdev_alloc_skb+0x4db/0x900
 ath9k_hif_usb_rx_cb+0xe89/0x1e30
 __usb_hcd_giveback_urb+0x6c9/0x930
 usb_hcd_giveback_urb+0x1e6/0x7c0
 dummy_timer+0xe82/0x4fd0
 call_timer_fn+0x85/0x550
 expire_timers+0x2f0/0x6c0
 __run_timers+0x6dd/0xb00
 run_timer_softirq+0x75/0xf0
 __do_softirq+0x206/0x809

CPU: 0 PID: 8004 Comm: kworker/u4:8 Not tainted 5.18.0-syzkaller-16253-g2f3064574275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
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