usb 5-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 ===================================================== BUG: KMSAN: kernel-usb-infoleak in kmsan_handle_urb+0x28/0x40 mm/kmsan/kmsan_hooks.c:303 CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events request_firmware_work_func Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:118 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 kmsan_internal_check_memory+0x202/0x520 mm/kmsan/kmsan.c:402 kmsan_handle_urb+0x28/0x40 mm/kmsan/kmsan_hooks.c:303 usb_submit_urb+0x89f/0x2590 drivers/usb/core/urb.c:421 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline] hif_usb_send+0x5f5/0x1720 drivers/net/wireless/ath/ath9k/hif_usb.c:479 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline] htc_connect_service+0x14b2/0x19f0 drivers/net/wireless/ath/ath9k/htc_hst.c:275 ath9k_wmi_connect+0x178/0x2c0 drivers/net/wireless/ath/ath9k/wmi.c:267 ath9k_init_htc_services+0xf3/0x1190 drivers/net/wireless/ath/ath9k/htc_drv_init.c:146 ath9k_htc_probe_device+0x4fb/0x3e10 drivers/net/wireless/ath/ath9k/htc_drv_init.c:960 ath9k_htc_hw_init+0xdf/0x190 drivers/net/wireless/ath/ath9k/htc_hst.c:503 ath9k_hif_usb_firmware_cb+0x42b/0xab0 drivers/net/wireless/ath/ath9k/hif_usb.c:1239 request_firmware_work_func+0x1b8/0x2e0 drivers/base/firmware_loader/main.c:1079 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2272 worker_thread+0x123c/0x2730 kernel/workqueue.c:2418 kthread+0x51c/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2906 [inline] __kmalloc_node_track_caller+0xa48/0x1610 mm/slub.c:4512 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0x318/0xb00 net/core/skbuff.c:210 alloc_skb include/linux/skbuff.h:1094 [inline] htc_connect_service+0x1057/0x19f0 drivers/net/wireless/ath/ath9k/htc_hst.c:258 ath9k_wmi_connect+0x178/0x2c0 drivers/net/wireless/ath/ath9k/wmi.c:267 ath9k_init_htc_services+0xf3/0x1190 drivers/net/wireless/ath/ath9k/htc_drv_init.c:146 ath9k_htc_probe_device+0x4fb/0x3e10 drivers/net/wireless/ath/ath9k/htc_drv_init.c:960 ath9k_htc_hw_init+0xdf/0x190 drivers/net/wireless/ath/ath9k/htc_hst.c:503 ath9k_hif_usb_firmware_cb+0x42b/0xab0 drivers/net/wireless/ath/ath9k/hif_usb.c:1239 request_firmware_work_func+0x1b8/0x2e0 drivers/base/firmware_loader/main.c:1079 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2272 worker_thread+0x123c/0x2730 kernel/workqueue.c:2418 kthread+0x51c/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Bytes 4-7 of 18 are uninitialized Memory access of size 18 starts at ffff8881a96b6800 =====================================================