===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1fc/0x290 net/core/skbuff.c:2095 skb_trim+0x1fc/0x290 net/core/skbuff.c:2095 ath9k_htc_rx_msg+0x8b2/0xbc0 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+0x1745/0x1e30 drivers/net/wireless/ath/ath9k/hif_usb.c:687 __usb_hcd_giveback_urb+0x6c9/0x930 drivers/usb/core/hcd.c:1670 usb_hcd_giveback_urb+0x1e6/0x7c0 drivers/usb/core/hcd.c:1747 dummy_timer+0xe82/0x4fd0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x85/0x550 kernel/time/timer.c:1421 expire_timers+0x2f0/0x6c0 kernel/time/timer.c:1466 __run_timers+0x6dd/0xb00 kernel/time/timer.c:1737 run_timer_softirq+0x75/0xf0 kernel/time/timer.c:1750 __do_softirq+0x206/0x809 kernel/softirq.c:558 invoke_softirq+0xa8/0x130 kernel/softirq.c:432 __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x79/0x130 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:551 [inline] acpi_idle_enter+0x787/0x830 drivers/acpi/processor_idle.c:686 cpuidle_enter_state+0x9b9/0x1860 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0xf8/0x180 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x67b/0x830 kernel/sched/idle.c:303 cpu_startup_entry+0x40/0x50 kernel/sched/idle.c:400 rest_init+0x277/0x2d0 init/main.c:727 start_kernel+0x0/0xbe8 init/main.c:885 start_kernel+0xa42/0xbe8 init/main.c:1143 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:546 x86_64_start_kernel+0xf5/0xfa arch/x86/kernel/head64.c:527 secondary_startup_64_no_verify+0xc4/0xcb 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+0xdee/0x14e0 mm/slub.c:4962 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x526/0xf50 net/core/skbuff.c:426 __netdev_alloc_skb+0x4db/0x900 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+0xe89/0x1e30 drivers/net/wireless/ath/ath9k/hif_usb.c:687 __usb_hcd_giveback_urb+0x6c9/0x930 drivers/usb/core/hcd.c:1670 usb_hcd_giveback_urb+0x1e6/0x7c0 drivers/usb/core/hcd.c:1747 dummy_timer+0xe82/0x4fd0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x85/0x550 kernel/time/timer.c:1421 expire_timers+0x2f0/0x6c0 kernel/time/timer.c:1466 __run_timers+0x6dd/0xb00 kernel/time/timer.c:1737 run_timer_softirq+0x75/0xf0 kernel/time/timer.c:1750 __do_softirq+0x206/0x809 kernel/softirq.c:558 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-syzkaller-16253-g2f3064574275 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================