hid-generic 0000:0000:0000.0010: ignoring exceeding usage max
hid-generic 0000:0000:0000.0010: hidraw0: <UNKNOWN> HID v0.00 Device [syz1] on s�z1
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BUG: KMSAN: uninit-value in __skb_dst_copy include/net/dst.h:279 [inline]
BUG: KMSAN: uninit-value in skb_dst_copy include/net/dst.h:285 [inline]
BUG: KMSAN: uninit-value in __copy_skb_header+0x2bf/0x720 net/core/skbuff.c:935
CPU: 0 PID: 9250 Comm: kworker/0:0 Not tainted 5.4.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events uhid_device_add_worker
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x191/0x1f0 lib/dump_stack.c:113
 kmsan_report+0x128/0x220 mm/kmsan/kmsan_report.c:108
 __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:245
 __skb_dst_copy include/net/dst.h:279 [inline]
 skb_dst_copy include/net/dst.h:285 [inline]
 __copy_skb_header+0x2bf/0x720 net/core/skbuff.c:935
 __skb_clone+0xa2/0x970 net/core/skbuff.c:987
 skb_clone+0x402/0x5d0 net/core/skbuff.c:1455
 do_one_broadcast net/netlink/af_netlink.c:1435 [inline]
 netlink_broadcast_filtered+0xbec/0x1c10 net/netlink/af_netlink.c:1510
 netlink_broadcast+0xf6/0x110 net/netlink/af_netlink.c:1534
 uevent_net_broadcast_untagged lib/kobject_uevent.c:330 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:408 [inline]
 kobject_uevent_env+0x1c4e/0x27c0 lib/kobject_uevent.c:592
 kobject_uevent+0x6f/0x80 lib/kobject_uevent.c:641
 driver_bound+0x851/0x980 drivers/base/dd.c:394
 really_probe+0x117d/0x1f90 drivers/base/dd.c:588
 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:721
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:828
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:430
 __device_attach+0x489/0x750 drivers/base/dd.c:894
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:941
 bus_probe_device+0x131/0x390 drivers/base/bus.c:490
 device_add+0x25b5/0x2df0 drivers/base/core.c:2202
 hid_add_device+0x12f1/0x1440 drivers/hid/hid-core.c:2368
 uhid_device_add_worker+0x7b/0x200 drivers/hid/uhid.c:62
 process_one_work+0x1572/0x1ef0 kernel/workqueue.c:2269
 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:151 [inline]
 kmsan_internal_poison_shadow+0x60/0x120 mm/kmsan/kmsan.c:134
 kmsan_slab_alloc+0xaa/0x120 mm/kmsan/kmsan_hooks.c:89
 slab_alloc_node mm/slub.c:2799 [inline]
 slab_alloc mm/slub.c:2808 [inline]
 kmem_cache_alloc+0x8d9/0xd20 mm/slub.c:2813
 skb_clone+0x326/0x5d0 net/core/skbuff.c:1448
 do_one_broadcast net/netlink/af_netlink.c:1435 [inline]
 netlink_broadcast_filtered+0xbec/0x1c10 net/netlink/af_netlink.c:1510
 netlink_broadcast+0xf6/0x110 net/netlink/af_netlink.c:1534
 uevent_net_broadcast_untagged lib/kobject_uevent.c:330 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:408 [inline]
 kobject_uevent_env+0x1c4e/0x27c0 lib/kobject_uevent.c:592
 kobject_uevent+0x6f/0x80 lib/kobject_uevent.c:641
 driver_bound+0x851/0x980 drivers/base/dd.c:394
 really_probe+0x117d/0x1f90 drivers/base/dd.c:588
 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:721
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:828
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:430
 __device_attach+0x489/0x750 drivers/base/dd.c:894
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:941
 bus_probe_device+0x131/0x390 drivers/base/bus.c:490
 device_add+0x25b5/0x2df0 drivers/base/core.c:2202
 hid_add_device+0x12f1/0x1440 drivers/hid/hid-core.c:2368
 uhid_device_add_worker+0x7b/0x200 drivers/hid/uhid.c:62
 process_one_work+0x1572/0x1ef0 kernel/workqueue.c:2269
 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355
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