general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f] CPU: 1 PID: 16562 Comm: syz-executor.5 Not tainted 6.2.0-rc4-syzkaller-00041-gc1649ec55708 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__lock_acquire+0xd83/0x56d0 kernel/locking/lockdep.c:4925 Code: 3c 0f 41 bf 01 00 00 00 0f 86 c8 00 00 00 89 05 73 6e 3c 0f e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 4e 31 00 00 49 81 3e e0 15 f7 8f 0f 84 4c f3 ff RSP: 0018:ffffc900031cf808 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 1ffff92000639f31 RCX: 0000000000000000 RDX: 0000000000000011 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1ce5eca R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802006ba80 R14: 0000000000000088 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c009e9be08 CR3: 000000000c48e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162 hidraw_release+0xcd/0x4c0 drivers/hid/hidraw.c:352 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xaa8/0x2950 kernel/exit.c:867 do_group_exit+0xd4/0x2a0 kernel/exit.c:1012 get_signal+0x21c3/0x2450 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc4500b0df1 Code: Unable to access opcode bytes at 0x7fc4500b0dc7. RSP: 002b:00007fc4502cfb30 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007fc4501abf80 RCX: 00007fc4500b0df1 RDX: 00007fc4502cfb70 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fc4501ad980 R08: 0000000000000000 R09: 00007ffd337f0080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000e7947 R13: 00007fc4502cfc80 R14: 00007fc4502cfca0 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xd83/0x56d0 kernel/locking/lockdep.c:4925 Code: 3c 0f 41 bf 01 00 00 00 0f 86 c8 00 00 00 89 05 73 6e 3c 0f e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 4e 31 00 00 49 81 3e e0 15 f7 8f 0f 84 4c f3 ff RSP: 0018:ffffc900031cf808 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 1ffff92000639f31 RCX: 0000000000000000 RDX: 0000000000000011 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff1ce5eca R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802006ba80 R14: 0000000000000088 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c009e9be08 CR3: 000000000c48e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 3c 0f cmp $0xf,%al 2: 41 bf 01 00 00 00 mov $0x1,%r15d 8: 0f 86 c8 00 00 00 jbe 0xd6 e: 89 05 73 6e 3c 0f mov %eax,0xf3c6e73(%rip) # 0xf3c6e87 14: e9 bd 00 00 00 jmpq 0xd6 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 f2 mov %r14,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 4e 31 00 00 jne 0x3182 34: 49 81 3e e0 15 f7 8f cmpq $0xffffffff8ff715e0,(%r14) 3b: 0f .byte 0xf 3c: 84 4c f3 ff test %cl,-0x1(%rbx,%rsi,8)