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: 27646 Comm: syz-executor.1 Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:__lock_acquire+0xe01/0x5f30 kernel/locking/lockdep.c:4956 Code: 00 00 3b 05 c1 81 59 0f 0f 87 7a 09 00 00 41 be 01 00 00 00 e9 84 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9e 33 00 00 49 81 3c 24 20 08 16 90 0f 84 cd f2 RSP: 0018:ffffc9000da5fb10 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: 1ffff92001b4bf93 RCX: 0000000000000000 RDX: 0000000000000011 RSI: 0000000000000000 RDI: 0000000000000088 RBP: ffff88804a4b8000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000088 R13: 0000000000000000 R14: 0000000000000088 R15: 0000000000000000 FS: 0000555555a34400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31333000 CR3: 000000003d606000 CR4: 0000000000350ee0 Call Trace: lock_acquire kernel/locking/lockdep.c:5705 [inline] lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5670 __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:321 task_work_run+0x16f/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f97ca03e01b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffedeb1f100 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f97ca03e01b RDX: 0000000000000000 RSI: 00007f97c94006f0 RDI: 0000000000000004 RBP: 00007f97ca1ad980 R08: 0000000000000000 R09: 000000003b43a468 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000001c1a2e R13: 00007ffedeb1f200 R14: 00007f97ca1ac050 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe01/0x5f30 kernel/locking/lockdep.c:4956 Code: 00 00 3b 05 c1 81 59 0f 0f 87 7a 09 00 00 41 be 01 00 00 00 e9 84 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9e 33 00 00 49 81 3c 24 20 08 16 90 0f 84 cd f2 RSP: 0018:ffffc9000da5fb10 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: 1ffff92001b4bf93 RCX: 0000000000000000 RDX: 0000000000000011 RSI: 0000000000000000 RDI: 0000000000000088 RBP: ffff88804a4b8000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000088 R13: 0000000000000000 R14: 0000000000000088 R15: 0000000000000000 FS: 0000555555a34400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31333000 CR3: 000000003d606000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 3b 05 c1 81 59 0f cmp 0xf5981c1(%rip),%eax # 0xf5981c9 8: 0f 87 7a 09 00 00 ja 0x988 e: 41 be 01 00 00 00 mov $0x1,%r14d 14: e9 84 00 00 00 jmpq 0x9d 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 9e 33 00 00 jne 0x33d2 34: 49 81 3c 24 20 08 16 cmpq $0xffffffff90160820,(%r12) 3b: 90 3c: 0f .byte 0xf 3d: 84 cd test %cl,%ch 3f: f2 repnz