Oops: general protection fault, probably for non-canonical address 0xdffffc0000000065: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f] CPU: 0 UID: 0 PID: 7893 Comm: syz.5.455 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:wacom_intuos_irq+0x62b/0x3430 drivers/hid/wacom_wac.c:1036 Code: e9 1a 33 bb 02 e8 c5 d1 ef f8 48 8b 04 24 44 0f b6 c5 48 8d b8 28 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d4 27 00 00 48 8b 04 24 48 c7 c7 d0 fa 3e 92 48 RSP: 0018:ffffc900041179e8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880244040ae RCX: 0000000000000000 RDX: 0000000000000065 RSI: ffffffff891c84cb RDI: 0000000000000328 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000011 R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000a R13: ffff88802faab048 R14: 0000000000000000 R15: 0000000000000021 FS: 00007fed3a88d6c0(0000) GS:ffff8880d4946000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fed3a84bd58 CR3: 00000000368d0000 CR4: 0000000000352ef0 DR0: 000000000000edf3 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: wacom_bpt_irq drivers/hid/wacom_wac.c:3290 [inline] wacom_wac_irq+0x196b/0xab80 drivers/hid/wacom_wac.c:3560 wacom_raw_event+0x6bb/0xba0 drivers/hid/wacom_sys.c:183 __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: 0033:0x7fed3999e559 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:00007fed3a88d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fed39c25fa0 RCX: 00007fed3999e559 RDX: 0000000000000010 RSI: 0000200000000380 RDI: 0000000000000005 RBP: 00007fed39a358b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fed39c26038 R14: 00007fed39c25fa0 R15: 00007ffee47b96f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wacom_intuos_irq+0x62b/0x3430 drivers/hid/wacom_wac.c:1036 Code: e9 1a 33 bb 02 e8 c5 d1 ef f8 48 8b 04 24 44 0f b6 c5 48 8d b8 28 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d4 27 00 00 48 8b 04 24 48 c7 c7 d0 fa 3e 92 48 RSP: 0018:ffffc900041179e8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880244040ae RCX: 0000000000000000 RDX: 0000000000000065 RSI: ffffffff891c84cb RDI: 0000000000000328 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000011 R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000a R13: ffff88802faab048 R14: 0000000000000000 R15: 0000000000000021 FS: 00007fed3a88d6c0(0000) GS:ffff8880d4b46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7375fc0e9c CR3: 00000000368d0000 CR4: 0000000000352ef0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff14 DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e9 1a 33 bb 02 jmp 0x2bb331f 5: e8 c5 d1 ef f8 call 0xf8efd1cf a: 48 8b 04 24 mov (%rsp),%rax e: 44 0f b6 c5 movzbl %bpl,%r8d 12: 48 8d b8 28 03 00 00 lea 0x328(%rax),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 d4 27 00 00 jne 0x2808 34: 48 8b 04 24 mov (%rsp),%rax 38: 48 c7 c7 d0 fa 3e 92 mov $0xffffffff923efad0,%rdi 3f: 48 rex.W