================================ WARNING: inconsistent lock state syzkaller #0 Tainted: G L -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. fido_id/27617 [HC0[0]:SC1[1]:HE0:SE0] takes: ffff888025be4068 (&ccp->wait_input_report_lock){+.?.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline] ffff888025be4068 (&ccp->wait_input_report_lock){+.?.}-{3:3}, at: ccp_raw_event+0x51/0x110 drivers/hwmon/corsair-cpro.c:161 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 __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+0x51/0x110 drivers/hwmon/corsair-cpro.c:161 __hid_input_report+0x41c/0x580 drivers/hid/hid-core.c:2175 uhid_dev_input2+0xbc/0x150 drivers/hid/uhid.c:609 uhid_char_write+0x4a1/0xc90 drivers/hid/uhid.c:767 vfs_write+0x296/0xba0 fs/read_write.c:685 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 2191 hardirqs last enabled at (2190): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] hardirqs last enabled at (2190): [] _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:221 hardirqs last disabled at (2191): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:153 [inline] hardirqs last disabled at (2191): [] _raw_spin_lock_irqsave+0x1a/0x60 kernel/locking/spinlock.c:181 softirqs last enabled at (2160): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last enabled at (2160): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last enabled at (2160): [] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 softirqs last disabled at (2187): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last disabled at (2187): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last disabled at (2187): [] __irq_exit_rcu+0xcb/0x220 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 fido_id/27617: 1, last CPU#0: #0: ffff88807fc25900 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock include/linux/mmap_lock.h:544 [inline] #0: ffff88807fc25900 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x2d8/0x9f0 mm/mmap.c:1323 stack backtrace: CPU: 0 UID: 0 PID: 27617 Comm: fido_id Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_usage_bug+0x28c/0x2e0 kernel/locking/lockdep.c:4086 valid_state+0xbe/0xf0 kernel/locking/lockdep.c:4100 mark_lock_irq+0x36/0x380 kernel/locking/lockdep.c:4311 mark_lock+0x117/0x190 kernel/locking/lockdep.c:4797 mark_usage kernel/locking/lockdep.c:-1 [inline] __lock_acquire+0x71e/0x2de0 kernel/locking/lockdep.c:5242 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 __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+0x51/0x110 drivers/hwmon/corsair-cpro.c:161 __hid_input_report+0x41c/0x580 drivers/hid/hid-core.c:2175 hid_irq_in+0x492/0x710 drivers/hid/usbhid/hid-core.c:287 __usb_hcd_giveback_urb+0x378/0x540 drivers/usb/core/hcd.c:1657 dummy_timer+0xa91/0x4cc0 drivers/usb/gadget/udc/dummy_hcd.c:2023 __run_hrtimer kernel/time/hrtimer.c:2074 [inline] __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2131 hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2148 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:221 Code: f7 e8 4d ff b9 f5 f7 c3 00 02 00 00 74 05 e8 50 4e e6 f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 84 fc aa f5 65 48 8b 05 0c 90 ab 07 48 85 c0 74 18 5b 41 5e e9 RSP: 0018:ffffc90005f6f660 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 0000000000000282 RCX: 8000000000000001 RDX: 0000000000000006 RSI: ffffffff8e4173a8 RDI: 0000000000000001 RBP: ffff8880786466a0 R08: ffffffff907a657f R09: 1ffffffff20f4caf R10: dffffc0000000000 R11: fffffbfff20f4cb0 R12: ffffffff8c0e4350 R13: ffff888078646690 R14: ffffffff9ac519c8 R15: 1ffff1100f0c8cd4 debug_object_activate+0x2ec/0x420 lib/debugobjects.c:891 debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline] __call_rcu_common kernel/rcu/tree.c:3166 [inline] call_rcu+0x43/0x8b0 kernel/rcu/tree.c:3301 slab_free_hook mm/slub.c:2712 [inline] slab_free mm/slub.c:6509 [inline] kmem_cache_free+0x471/0x650 mm/slub.c:6636 tear_down_vmas+0x31f/0x530 mm/mmap.c:1277 exit_mmap+0x4ca/0x9f0 mm/mmap.c:1335 __mmput+0x118/0x420 kernel/fork.c:1193 exec_mm_put_old fs/exec.c:920 [inline] setup_new_exec+0x30d/0x360 fs/exec.c:1400 load_elf_binary+0xbc0/0x28d0 fs/binfmt_elf.c:1024 search_binary_handler fs/exec.c:1779 [inline] exec_binprm fs/exec.c:1811 [inline] bprm_execve+0x930/0x1590 fs/exec.c:1867 do_execveat_common+0x4f4/0x670 fs/exec.c:1965 __do_sys_execve fs/exec.c:2038 [inline] __se_sys_execve fs/exec.c:2032 [inline] __x64_sys_execve+0x97/0xc0 fs/exec.c:2032 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ba12f2107 Code: Unable to access opcode bytes at 0x7f1ba12f20dd. RSP: 002b:00007ffed49c98a8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000557c3b5fa140 RCX: 00007f1ba12f2107 RDX: 0000557c471149a0 RSI: 00007ffed49c99c0 RDI: 00007ffed49ca1c0 RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000202 R12: 0000557c471149a0 R13: 00007ffed49c99c0 R14: 000000000000000d R15: 0000000000000009 ---------------- Code disassembly (best guess): 0: f7 e8 imul %eax 2: 4d ff rex.WRB (bad) 4: b9 f5 f7 c3 00 mov $0xc3f7f5,%ecx 9: 02 00 add (%rax),%al b: 00 74 05 e8 add %dh,-0x18(%rbp,%rax,1) f: 50 push %rax 10: 4e e6 f5 rex.WRX out %al,$0xf5 13: 9c pushf 14: 58 pop %rax 15: a9 00 02 00 00 test $0x200,%eax 1a: 75 29 jne 0x45 1c: f7 c3 00 02 00 00 test $0x200,%ebx 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 84 fc aa f5 call 0xf5aafcb3 <-- trapping instruction 2f: 65 48 8b 05 0c 90 ab mov %gs:0x7ab900c(%rip),%rax # 0x7ab9043 36: 07 37: 48 85 c0 test %rax,%rax 3a: 74 18 je 0x54 3c: 5b pop %rbx 3d: 41 5e pop %r14 3f: e9 .byte 0xe9