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BUG: KMSAN: kernel-usb-infoleak in kmsan_handle_urb+0x28/0x40 mm/kmsan/kmsan_hooks.c:303
CPU: 1 PID: 22007 Comm: syz-executor.3 Not tainted 5.10.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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+0x484/0x520 mm/kmsan/kmsan.c:437
 kmsan_handle_urb+0x28/0x40 mm/kmsan/kmsan_hooks.c:303
 usb_submit_urb+0x89f/0x2590 drivers/usb/core/urb.c:421
 hid_submit_ctrl+0xbe2/0x11e0 drivers/hid/usbhid/hid-core.c:416
 usbhid_restart_ctrl_queue+0x3e9/0x5c0 drivers/hid/usbhid/hid-core.c:258
 __usbhid_submit_report drivers/hid/usbhid/hid-core.c:601 [inline]
 usbhid_submit_report+0xa6c/0x13a0 drivers/hid/usbhid/hid-core.c:638
 usbhid_init_reports+0x1ff/0x5b0 drivers/hid/usbhid/hid-core.c:782
 hiddev_ioctl+0x1570/0x3a80 drivers/hid/usbhid/hiddev.c:794
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x311/0x4d0 fs/ioctl.c:739
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:739
 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e219
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f751f600c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000020000040 RSI: 00000000c018480d RDI: 0000000000000004
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00000000016afb5f R14: 00007f751f6019c0 R15: 000000000119bf8c

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]
 slab_alloc mm/slub.c:2915 [inline]
 __kmalloc+0x307/0x550 mm/slub.c:3983
 kmalloc include/linux/slab.h:557 [inline]
 hcd_buffer_alloc+0x276/0x5e0 drivers/usb/core/buffer.c:132
 usb_alloc_coherent+0x11a/0x190 drivers/usb/core/usb.c:897
 hid_alloc_buffers drivers/hid/usbhid/hid-core.c:862 [inline]
 usbhid_start+0x106c/0x3ee0 drivers/hid/usbhid/hid-core.c:1088
 hid_hw_start+0xa6/0x2a0 drivers/hid/hid-core.c:2048
 cmhid_probe+0x218/0x3e0 drivers/hid/hid-cmedia.c:123
 hid_device_probe+0x480/0x940 drivers/hid/hid-core.c:2281
 really_probe+0xdd2/0x2420 drivers/base/dd.c:554
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x397e/0x3f00 drivers/base/core.c:2936
 hid_add_device+0x15f0/0x1760 drivers/hid/hid-core.c:2437
 usbhid_probe+0x153e/0x1860 drivers/hid/usbhid/hid-core.c:1407
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xebd/0x2420 drivers/base/dd.c:558
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x397e/0x3f00 drivers/base/core.c:2936
 usb_set_configuration+0x39a2/0x4000 drivers/usb/core/message.c:2159
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xebd/0x2420 drivers/base/dd.c:558
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x397e/0x3f00 drivers/base/core.c:2936
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5222 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5362 [inline]
 port_event drivers/usb/core/hub.c:5508 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5590
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2272
 process_scheduled_works kernel/workqueue.c:2334 [inline]
 worker_thread+0x140c/0x2730 kernel/workqueue.c:2420
 kthread+0x51c/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

Bytes 0-8191 of 8192 are uninitialized
Memory access of size 8192 starts at ffff888163a68000
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