================================ WARNING: inconsistent lock state syzkaller #0 Tainted: G L -------------------------------- inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. syz.3.6230/28362 [HC0[0]:SC0[0]:HE1:SE1] takes: ffff8880785c8468 (&ccp->wait_input_report_lock){+.?.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline] ffff8880785c8468 (&ccp->wait_input_report_lock){+.?.}-{3:3}, at: ccp_raw_event+0x59/0x130 drivers/hwmon/corsair-cpro.c:161 {IN-SOFTIRQ-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __raw_spin_lock include/linux/spinlock_api_smp.h:190 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:173 spin_lock include/linux/spinlock.h:347 [inline] ccp_raw_event+0x59/0x130 drivers/hwmon/corsair-cpro.c:161 __hid_input_report.constprop.0+0x319/0x470 drivers/hid/hid-core.c:2175 hid_irq_in+0x55d/0x710 drivers/hid/usbhid/hid-core.c:287 __usb_hcd_giveback_urb+0x38e/0x610 drivers/usb/core/hcd.c:1657 usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741 dummy_timer+0xdaf/0x3820 drivers/usb/gadget/udc/dummy_hcd.c:2023 __run_hrtimer kernel/time/hrtimer.c:2074 [inline] __hrtimer_run_queues+0x462/0x9c0 kernel/time/hrtimer.c:2131 hrtimer_run_softirq+0x1ca/0x360 kernel/time/hrtimer.c:2148 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0x16a/0x210 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 __sanitizer_cov_trace_pc+0x0/0x70 include/linux/refcount.h:400 rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline] pfn_valid+0x1b8/0x4b0 include/linux/mmzone.h:2286 page_table_check_clear+0x21/0x540 mm/page_table_check.c:70 __page_table_check_pte_clear+0x10f/0x120 mm/page_table_check.c:155 page_table_check_pte_clear include/linux/page_table_check.h:55 [inline] ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1259 [inline] get_and_clear_full_ptes include/linux/pgtable.h:879 [inline] zap_present_folio_ptes mm/memory.c:1779 [inline] zap_present_ptes mm/memory.c:1861 [inline] do_zap_pte_range mm/memory.c:1963 [inline] zap_pte_range mm/memory.c:2065 [inline] zap_pmd_range mm/memory.c:2151 [inline] zap_pud_range mm/memory.c:2179 [inline] zap_p4d_range mm/memory.c:2200 [inline] __zap_vma_range+0x2c43/0x48e0 mm/memory.c:2240 unmap_vmas+0x299/0x5f0 mm/memory.c:2309 exit_mmap+0x1ef/0xa00 mm/mmap.c:1315 __mmput+0x12a/0x410 kernel/fork.c:1193 mmput+0x67/0x80 kernel/fork.c:1216 exit_mm kernel/exit.c:592 [inline] do_exit+0x83b/0x2a50 kernel/exit.c:974 do_group_exit+0xd5/0x2a0 kernel/exit.c:1129 get_signal+0x1ec7/0x21e0 kernel/signal.c:3112 arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x139/0x700 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline] do_syscall_64+0x661/0x790 arch/x86/entry/syscall_64.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 55 hardirqs last enabled at (55): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] hardirqs last enabled at (55): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:221 hardirqs last disabled at (54): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:153 [inline] hardirqs last disabled at (54): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:181 softirqs last enabled at (42): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last enabled at (42): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last enabled at (42): [] __irq_exit_rcu+0x16a/0x210 kernel/softirq.c:758 softirqs last disabled at (33): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last disabled at (33): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last disabled at (33): [] __irq_exit_rcu+0x16a/0x210 kernel/softirq.c:758 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ccp->wait_input_report_lock); lock(&ccp->wait_input_report_lock); *** DEADLOCK *** locks held by syz.3.6230/28362: 1, last CPU#1: #0: ffff8880644ac060 (&uhid->devlock){+.+.}-{4:4}, at: uhid_char_write+0x6b/0x10e0 drivers/hid/uhid.c:731 stack backtrace: CPU: 1 UID: 0 PID: 28362 Comm: syz.3.6230 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_usage_bug.part.0+0x258/0x340 kernel/locking/lockdep.c:4086 print_usage_bug kernel/locking/lockdep.c:4054 [inline] valid_state kernel/locking/lockdep.c:4100 [inline] mark_lock_irq kernel/locking/lockdep.c:4311 [inline] mark_lock+0x956/0x1020 kernel/locking/lockdep.c:4797 mark_usage kernel/locking/lockdep.c:4710 [inline] __lock_acquire+0x8e2/0x1f40 kernel/locking/lockdep.c:5242 lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __raw_spin_lock include/linux/spinlock_api_smp.h:190 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:173 spin_lock include/linux/spinlock.h:347 [inline] ccp_raw_event+0x59/0x130 drivers/hwmon/corsair-cpro.c:161 __hid_input_report.constprop.0+0x319/0x470 drivers/hid/hid-core.c:2175 uhid_dev_input2 drivers/hid/uhid.c:609 [inline] uhid_char_write+0xb6b/0x10e0 drivers/hid/uhid.c:767 vfs_write+0x2aa/0x1050 fs/read_write.c:685 ksys_write+0x1f8/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6a01f9e199 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6a02e70028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f6a02226090 RCX: 00007f6a01f9e199 RDX: 0000000000000012 RSI: 0000200000000500 RDI: 0000000000000003 RBP: 00007f6a020350b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6a02226128 R14: 00007f6a02226090 R15: 00007ffc87868608