===================================================== BUG: KMSAN: uninit-value in hid_start_in+0x73/0x440 drivers/hid/usbhid/hid-core.c:86 CPU: 1 PID: 12053 Comm: syz-executor415 Not tainted 5.3.0-rc7+ #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+0x191/0x1f0 lib/dump_stack.c:113 kmsan_report+0x13a/0x2b0 mm/kmsan/kmsan_report.c:108 __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:250 arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:200 [inline] atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:695 [inline] queued_spin_lock include/asm-generic/qspinlock.h:78 [inline] do_raw_spin_lock_flags include/linux/spinlock.h:193 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irqsave+0xd2/0x110 kernel/locking/spinlock.c:159 hid_start_in+0x73/0x440 drivers/hid/usbhid/hid-core.c:86 hid_retry_timeout+0x61/0xc0 drivers/hid/usbhid/hid-core.c:111 call_timer_fn+0x232/0x530 kernel/time/timer.c:1322 expire_timers kernel/time/timer.c:1366 [inline] __run_timers+0xcdc/0x11a0 kernel/time/timer.c:1685 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1698 __do_softirq+0x4a1/0x83a kernel/softirq.c:293 invoke_softirq kernel/softirq.c:375 [inline] irq_exit+0x230/0x280 kernel/softirq.c:416 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:537 smp_apic_timer_interrupt+0x48/0x70 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0x2e/0x40 arch/x86/entry/entry_64.S:837 RIP: 0010:kmsan_get_shadow_origin_ptr+0x1b4/0x4c0 mm/kmsan/kmsan_shadow.c:195 Code: 48 c1 e2 05 48 89 ce 48 01 d6 74 0d 48 8b 36 40 f6 c6 02 0f 85 86 01 00 00 4c 89 f7 e8 65 d8 ff ff 48 85 c0 74 61 48 8b 70 40 <48> 85 f6 0f 84 8c fe ff ff 48 8b 48 48 4c 89 e3 48 85 c9 0f 84 7f RSP: 0018:ffff8880b063fbe0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffea000371f3b0 RBX: ffff8881222627e0 RCX: 000000000371f3b0 RDX: ffffea000000000f RSI: ffffea0003946cb0 RDI: 00000000b063fc40 RBP: ffff8880b063fc10 R08: 0000000000000002 R09: ffff8880b748fc40 R10: 0000000000000004 R11: ffffffff8184fe10 R12: ffffffff902c1000 R13: ffff8880b063fc40 R14: ffff8880b063fc40 R15: 0000000000000008 __msan_metadata_ptr_for_load_8+0x10/0x20 mm/kmsan/kmsan_instr.c:55 native_save_fl arch/x86/include/asm/irqflags.h:35 [inline] arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline] arch_local_irq_save arch/x86/include/asm/irqflags.h:120 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] _raw_spin_lock_irqsave+0x6e/0x110 kernel/locking/spinlock.c:159 lock_hrtimer_base kernel/time/hrtimer.c:164 [inline] hrtimer_start_range_ns+0x1b2/0x16b0 kernel/time/hrtimer.c:1103 hrtimer_start_expires include/linux/hrtimer.h:395 [inline] do_nanosleep+0x226/0x990 kernel/time/hrtimer.c:1676 hrtimer_nanosleep kernel/time/hrtimer.c:1733 [inline] __do_sys_nanosleep kernel/time/hrtimer.c:1767 [inline] __se_sys_nanosleep+0x6e2/0x900 kernel/time/hrtimer.c:1754 __x64_sys_nanosleep+0x3e/0x60 kernel/time/hrtimer.c:1754 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x444490 Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 01 47 29 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 74 e4 fb ff c3 48 83 ec 08 e8 0a 43 00 00 RSP: 002b:00007ffe49ee99f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 00000000000aece7 RCX: 0000000000444490 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffe49ee9a00 RBP: 000000000000305e R08: 0000000000002f15 R09: 0000555555c71880 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000019 R13: 0000000000402e20 R14: 0000000000000000 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:150 [inline] kmsan_internal_poison_shadow+0x53/0x100 mm/kmsan/kmsan.c:134 kmsan_slab_free+0x8d/0x100 mm/kmsan/kmsan_hooks.c:123 slab_free_freelist_hook mm/slub.c:1472 [inline] slab_free mm/slub.c:3038 [inline] kfree+0x4c1/0x2db0 mm/slub.c:3980 hid_device_release+0x78/0x90 drivers/hid/hid-core.c:662 device_release+0xe2/0x380 drivers/base/core.c:1060 kobject_cleanup lib/kobject.c:693 [inline] kobject_release lib/kobject.c:722 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x38d/0x480 lib/kobject.c:739 put_device+0x51/0x70 drivers/base/core.c:2264 hid_destroy_device+0x18c/0x200 drivers/hid/hid-core.c:2433 usbhid_probe+0x162c/0x1880 drivers/hid/usbhid/hid-core.c:1397 usb_probe_interface+0xd19/0x1310 drivers/usb/core/driver.c:361 really_probe+0x1373/0x1dc0 drivers/base/dd.c:552 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:709 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:816 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:882 device_initial_probe+0x4a/0x60 drivers/base/dd.c:929 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2165 usb_set_configuration+0x309f/0x3710 drivers/usb/core/message.c:2027 generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210 usb_probe_device+0x146/0x200 drivers/usb/core/driver.c:266 really_probe+0x1373/0x1dc0 drivers/base/dd.c:552 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:709 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:816 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:882 device_initial_probe+0x4a/0x60 drivers/base/dd.c:929 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2165 usb_new_device+0x23e5/0x2fb0 drivers/usb/core/hub.c:2536 hub_port_connect drivers/usb/core/hub.c:5098 [inline] hub_port_connect_change drivers/usb/core/hub.c:5213 [inline] port_event drivers/usb/core/hub.c:5359 [inline] hub_event+0x581d/0x72f0 drivers/usb/core/hub.c:5441 process_one_work+0x1572/0x1ef0 kernel/workqueue.c:2269 process_scheduled_works kernel/workqueue.c:2331 [inline] worker_thread+0x189c/0x2460 kernel/workqueue.c:2417 kthread+0x4b5/0x4f0 kernel/kthread.c:256 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355 =====================================================