syzbot

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BUG: KMSAN: uninit-value in pm_runtime_get_sync include/linux/pm_runtime.h:226 [inline]
BUG: KMSAN: uninit-value in usb_autopm_get_interface+0x5f/0x100 drivers/usb/core/driver.c:1707
CPU: 0 PID: 19875 Comm: syz-executor.5 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_inc arch/x86/include/asm/atomic.h:97 [inline]
 atomic_inc include/asm-generic/atomic-instrumented.h:240 [inline]
 __pm_runtime_resume+0x179/0x190 drivers/base/power/runtime.c:1073
 pm_runtime_get_sync include/linux/pm_runtime.h:226 [inline]
 usb_autopm_get_interface+0x5f/0x100 drivers/usb/core/driver.c:1707
 usbhid_power+0xb7/0x170 drivers/hid/usbhid/hid-core.c:1234
 hid_hw_power include/linux/hid.h:1038 [inline]
 hidraw_open+0x459/0xc10 drivers/hid/hidraw.c:282
 chrdev_open+0xc58/0xe00 fs/char_dev.c:414
 do_dentry_open+0xda7/0x1810 fs/open.c:797
 vfs_open+0xaf/0xe0 fs/open.c:906
 do_last fs/namei.c:3416 [inline]
 path_openat+0x17f4/0x6bb0 fs/namei.c:3533
 do_filp_open+0x2b8/0x710 fs/namei.c:3563
 do_sys_open+0x642/0xa30 fs/open.c:1089
 __do_sys_open fs/open.c:1107 [inline]
 __se_sys_open+0xad/0xc0 fs/open.c:1102
 __x64_sys_open+0x4a/0x70 fs/open.c:1102
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x413941
Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f3dd2d6d7a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 0000000000413941
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f3dd2d6d850
RBP: 000000000075bf20 R08: 000000000000000f R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3dd2d6e6d4
R13: 00000000004c90ab R14: 00000000004e0590 R15: 00000000ffffffff

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]
 kmem_cache_free+0x2d1/0x2b70 mm/slub.c:3054
 put_files_struct+0x4c4/0x500 fs/file.c:421
 exit_files+0xef/0x150 fs/file.c:445
 do_exit+0xe96/0x3aa0 kernel/exit.c:876
 do_group_exit+0x18a/0x320 kernel/exit.c:985
 get_signal+0xbf6/0x32f0 kernel/signal.c:2734
 do_signal+0x6f/0xe10 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop arch/x86/entry/common.c:159 [inline]
 prepare_exit_to_usermode+0x2c5/0x4d0 arch/x86/entry/common.c:194
 syscall_return_slowpath+0x90/0x610 arch/x86/entry/common.c:274
 do_syscall_64+0xe2/0xf0 arch/x86/entry/common.c:300
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
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