===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1f8/0x280 net/core/skbuff.c:2095 skb_trim+0x1f8/0x280 net/core/skbuff.c:2095 ath9k_htc_rx_msg+0x63c/0xbc0 drivers/net/wireless/ath/ath9k/htc_hst.c:460 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:654 [inline] ath9k_hif_usb_rx_cb+0x1721/0x1df0 drivers/net/wireless/ath/ath9k/hif_usb.c:687 __usb_hcd_giveback_urb+0x6c6/0x930 drivers/usb/core/hcd.c:1670 usb_hcd_giveback_urb+0x1e2/0x7c0 drivers/usb/core/hcd.c:1747 dummy_timer+0x157a/0x51c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x81/0x540 kernel/time/timer.c:1421 expire_timers+0x2f5/0x6d0 kernel/time/timer.c:1466 __run_timers+0x682/0xa80 kernel/time/timer.c:1737 run_timer_softirq+0x71/0xe0 kernel/time/timer.c:1750 __do_softirq+0x1ee/0x7c5 kernel/softirq.c:558 invoke_softirq+0xa4/0x130 kernel/softirq.c:432 __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x76/0x130 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0xa2/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch_local_irq_enable arch/x86/include/asm/irqflags.h:80 [inline] raw_spin_rq_unlock_irq kernel/sched/sched.h:1309 [inline] finish_lock_switch kernel/sched/core.c:4833 [inline] finish_task_switch+0x401/0xad0 kernel/sched/core.c:4951 context_switch kernel/sched/core.c:5076 [inline] __schedule+0x176b/0x21c0 kernel/sched/core.c:6388 schedule+0x195/0x270 kernel/sched/core.c:6460 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x1be/0xa00 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x406/0x6c0 kernel/time/hrtimer.c:2097 common_nsleep+0x16b/0x1a0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x6c2/0x770 kernel/time/posix-timers.c:1245 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x51/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit was created at: slab_post_alloc_hook mm/slab.h:754 [inline] slab_alloc_node mm/slub.c:3231 [inline] __kmalloc_node_track_caller+0xde3/0x14f0 mm/slub.c:4962 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 __netdev_alloc_skb+0x4b9/0x8c0 net/core/skbuff.c:494 __dev_alloc_skb include/linux/skbuff.h:3107 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:636 [inline] ath9k_hif_usb_rx_cb+0xead/0x1df0 drivers/net/wireless/ath/ath9k/hif_usb.c:687 __usb_hcd_giveback_urb+0x6c6/0x930 drivers/usb/core/hcd.c:1670 usb_hcd_giveback_urb+0x1e2/0x7c0 drivers/usb/core/hcd.c:1747 dummy_timer+0x157a/0x51c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x81/0x540 kernel/time/timer.c:1421 expire_timers+0x2f5/0x6d0 kernel/time/timer.c:1466 __run_timers+0x682/0xa80 kernel/time/timer.c:1737 run_timer_softirq+0x71/0xe0 kernel/time/timer.c:1750 __do_softirq+0x1ee/0x7c5 kernel/softirq.c:558 CPU: 0 PID: 3512 Comm: syz-executor.5 Not tainted 5.18.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================