================================ WARNING: inconsistent lock state syzkaller #0 Tainted: G L -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor/9570 [HC0[0]:SC1[1]:HE0:SE0] takes: ffff88804b9e9c68 (&ccp->wait_input_report_lock){+.?.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline] ffff88804b9e9c68 (&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: 556915 hardirqs last enabled at (556914): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] hardirqs last enabled at (556914): [] _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:221 hardirqs last disabled at (556915): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:153 [inline] hardirqs last disabled at (556915): [] _raw_spin_lock_irqsave+0x1a/0x60 kernel/locking/spinlock.c:181 softirqs last enabled at (556902): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last enabled at (556902): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last enabled at (556902): [] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 softirqs last disabled at (556911): [] __do_softirq kernel/softirq.c:679 [inline] softirqs last disabled at (556911): [] invoke_softirq kernel/softirq.c:519 [inline] softirqs last disabled at (556911): [] __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 syz-executor/9570: 3, last CPU#0: #0: ffff888036074d08 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310 #1: ffffffff8ed5c8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #1: ffffffff8ed5c8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffffff8ed5c8a0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x240 mm/pgtable-generic.c:290 #2: ffff888021773738 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline] #2: ffff888021773738 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: handle_pte_fault mm/memory.c:6574 [inline] #2: ffff888021773738 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: __handle_mm_fault mm/memory.c:6707 [inline] #2: ffff888021773738 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: handle_mm_fault+0x1526/0x3750 mm/memory.c:6876 stack backtrace: CPU: 0 UID: 0 PID: 9570 Comm: syz-executor 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:memory_is_poisoned_n mm/kasan/generic.c:141 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline] RIP: 0010:kasan_check_range+0x71/0x2c0 mm/kasan/generic.c:200 Code: 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 4d 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc ff df <4d> 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d RSP: 0000:ffffc90004a77a48 EFLAGS: 00000a03 RAX: ffffffff821e2301 RBX: dffffc0000000001 RCX: ffffffff821e23be RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001ff8cc0 RBP: ffffc90004a77c10 R08: ffffea0001ff8cc7 R09: 1ffffd40003ff198 R10: dffffc0000000000 R11: fffff940003ff198 R12: ffffea0001ff8cc8 R13: dffffc0000000000 R14: ffffea0001ff8cc0 R15: 1ffffd40003ff198 instrument_atomic_read include/linux/instrumented.h:82 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] folio_test_lru include/linux/page-flags.h:552 [inline] wp_can_reuse_anon_folio mm/memory.c:4316 [inline] do_wp_page+0xcbe/0x4b80 mm/memory.c:4451 handle_pte_fault mm/memory.c:6582 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0x15d7/0x3750 mm/memory.c:6876 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fa075852ffb Code: ff 48 8d 3d df 56 1b 00 31 c0 e8 60 fe ff ff 41 57 41 56 41 55 4c 8d 2d 36 1d 1e 00 41 54 49 89 fc 55 53 48 81 ec b8 10 00 00 44 24 0c 00 00 00 00 80 3d d7 26 f0 00 00 48 8d 1d 12 1d 1e 00 RSP: 002b:00007fa075d4ecc0 EFLAGS: 00010206 RAX: 0000000000000004 RBX: 00000000000000cb RCX: 0000000000000047 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 00007fa075d4fe00 RBP: 00007fa075d4fdec R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa075d4fe00 R13: 00007fa075a34d23 R14: 0000000000261257 R15: 00007fa075d4fe40 ---------------- Code disassembly (best guess): 0: 00 49 89 add %cl,-0x77(%rcx) 3: ff 49 c1 decl -0x3f(%rcx) 6: ef out %eax,(%dx) 7: 03 49 ba add -0x46(%rcx),%ecx a: 00 00 add %al,(%rax) c: 00 00 add %al,(%rax) e: 00 fc add %bh,%ah 10: ff lcall (bad) 11: df 4f 8d fisttps -0x73(%rdi) 14: 1c 17 sbb $0x17,%al 16: 49 ff c8 dec %r8 19: 4d 89 c1 mov %r8,%r9 1c: 49 c1 e9 03 shr $0x3,%r9 20: 48 bb 01 00 00 00 00 movabs $0xdffffc0000000001,%rbx 27: fc ff df * 2a: 4d 8d 34 19 lea (%r9,%rbx,1),%r14 <-- trapping instruction 2e: 4d 89 f4 mov %r14,%r12 31: 4d 29 dc sub %r11,%r12 34: 49 83 fc 10 cmp $0x10,%r12 38: 7f 29 jg 0x63 3a: 4d 85 e4 test %r12,%r12 3d: 0f .byte 0xf 3e: 84 .byte 0x84 3f: 3d .byte 0x3d