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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
 acpi_idle_enter+0x787/0x830
 cpuidle_enter_state+0x9b9/0x1860
 cpuidle_enter+0xf8/0x180
 do_idle+0x67b/0x830
 cpu_startup_entry+0x40/0x50
 start_secondary+0x116/0x120
 secondary_startup_64_no_verify+0xc4/0xcb

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: 1 PID: 0 Comm: swapper/1 Not tainted 5.18.0-syzkaller-16253-g2f3064574275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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