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BUG: KMSAN: uninit-value in ath9k_wmi_ctrl_rx+0x2f9/0x520 drivers/net/wireless/ath/ath9k/wmi.c:227
 ath9k_wmi_ctrl_rx+0x2f9/0x520 drivers/net/wireless/ath/ath9k/wmi.c:227
 ath9k_htc_rx_msg+0x5a5/0xac0 drivers/net/wireless/ath/ath9k/htc_hst.c:479
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:653 [inline]
 ath9k_hif_usb_rx_cb+0x18f9/0x1ee0 drivers/net/wireless/ath/ath9k/hif_usb.c:686
 __usb_hcd_giveback_urb+0x522/0x740 drivers/usb/core/hcd.c:1671
 usb_hcd_giveback_urb+0x154/0x670 drivers/usb/core/hcd.c:1754
 dummy_timer+0xd72/0x4d40 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x43/0x480 kernel/time/timer.c:1474
 expire_timers+0x272/0x610 kernel/time/timer.c:1519
 __run_timers+0x5bd/0x8c0 kernel/time/timer.c:1790
 run_timer_softirq+0x64/0xe0 kernel/time/timer.c:1803
 __do_softirq+0x1c5/0x7b9 kernel/softirq.c:571
 invoke_softirq+0x8f/0x100 kernel/softirq.c:445
 __irq_exit_rcu+0x5a/0x110 kernel/softirq.c:650
 irq_exit_rcu+0xe/0x10 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
 kmsan_get_shadow_origin_ptr+0x3f/0xa0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:36 [inline]
 __msan_metadata_ptr_for_load_8+0x20/0x30 mm/kmsan/instrumentation.c:78
 on_stack+0x36/0x190
 update_stack_state+0xa9/0x1e0 arch/x86/kernel/unwind_frame.c:228
 unwind_next_frame+0x119/0x360 arch/x86/kernel/unwind_frame.c:315
 __unwind_start+0x3a0/0x490 arch/x86/kernel/unwind_frame.c:417
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x104/0x280 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0xb2/0x100 kernel/stacktrace.c:122
 kmsan_save_stack_with_flags+0x2b/0x60 mm/kmsan/core.c:75
 kmsan_alloc_page+0x173/0x210 mm/kmsan/shadow.c:197
 __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578
 alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285
 folio_alloc+0x3e/0x120 mm/mempolicy.c:2295
 filemap_alloc_folio mm/filemap.c:971 [inline]
 __filemap_get_folio+0xe59/0x1b00 mm/filemap.c:1965
 pagecache_get_page+0x4a/0x2f0 mm/folio-compat.c:110
 grab_cache_page_write_begin+0x51/0x70 mm/folio-compat.c:122
 ext4_da_write_begin+0x7cd/0x1190 fs/ext4/inode.c:2995
 generic_perform_write+0x3f1/0xbf0 mm/filemap.c:3753
 ext4_buffered_write_iter+0x5ec/0xbe0 fs/ext4/file.c:285
 ext4_file_write_iter+0x1d3f/0x3430
 __kernel_write_iter+0x326/0x9a0 fs/read_write.c:517
 dump_emit_page+0x443/0x6c0 fs/coredump.c:857
 dump_user_range+0xd3/0x680 fs/coredump.c:908
 elf_core_dump+0x5f9a/0x6340 fs/binfmt_elf.c:2312
 do_coredump+0x3480/0x4a80 fs/coredump.c:755
 get_signal+0x1652/0x2050 kernel/signal.c:2844
 arch_do_signal_or_restart+0x56/0xae0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0xea/0x320 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x16e/0x220 kernel/entry/common.c:203
 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:309
 irqentry_exit+0x12/0x40 kernel/entry/common.c:412
 exc_page_fault+0x6d/0x140 arch/x86/mm/fault.c:1578
 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:742 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x6ee/0xc90 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:954 [inline]
 __kmalloc_node_track_caller+0x114/0x3c0 mm/slab_common.c:975
 kmalloc_reserve net/core/skbuff.c:437 [inline]
 __alloc_skb+0x34a/0xca0 net/core/skbuff.c:509
 __netdev_alloc_skb+0x126/0xc00 net/core/skbuff.c:575
 __dev_alloc_skb include/linux/skbuff.h:3162 [inline]
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:635 [inline]
 ath9k_hif_usb_rx_cb+0xda2/0x1ee0 drivers/net/wireless/ath/ath9k/hif_usb.c:686
 __usb_hcd_giveback_urb+0x522/0x740 drivers/usb/core/hcd.c:1671
 usb_hcd_giveback_urb+0x154/0x670 drivers/usb/core/hcd.c:1754
 dummy_timer+0xd72/0x4d40 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x43/0x480 kernel/time/timer.c:1474
 expire_timers+0x272/0x610 kernel/time/timer.c:1519
 __run_timers+0x5bd/0x8c0 kernel/time/timer.c:1790
 run_timer_softirq+0x64/0xe0 kernel/time/timer.c:1803
 __do_softirq+0x1c5/0x7b9 kernel/softirq.c:571

CPU: 1 PID: 3735 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-63555-ga472f15b3d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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