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AKwUvByiK87f3KnxfLPwTLeatYoYoA0mYfuYJgXwp0HcWS5t/18ZXHeu7guCW8QrQ62ge26JY6hJESQ/1IuHlUw=@vger.kernel.org X-Gm-Message-State: AFuF++neN0ewF6bdPY1lERwxuTpTQWKFeFA/7+F2BxBHqDnCuuetLTHS VIExg8XZMNihuAynXBu2fsaXthn/Ix1fCx8c8UrcI1B4FuM1ZPPC8RUvI3WVyLkgIMTCIFyC1zg Mkw8+mEnQoRJ1WVO5VPjLBG2Q+egeNbO6NJpsfTRe32fMMY+9WrZ6VUlroR8= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:81cf:b0:6be:4eb3:e1c0 with SMTP id 006d021491bc7-6d4411d1ecemr218095eaf.45.1790191052103; Wed, 23 Sep 2026 12:17:32 -0700 (PDT) Date: Wed, 23 Sep 2026 12:17:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ab425cc.7428d045.30104c.0003.GAE@google.com> Subject: [syzbot] [input?] general protection fault in wacom_intuos_irq From: syzbot To: bentiss@kernel.org, jason.gerecke@wacom.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, ping.cheng@wacom.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 50d05c7c76c9 Merge tag 'landlock-7.3-rc3' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11a02405580000 kernel config: https://syzkaller.appspot.com/x/.config?x=85bc5cc2fc7394d9 dashboard link: https://syzkaller.appspot.com/bug?extid=b5a7cd83622c747977de compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13a02405580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13f57805580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-50d05c7c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/303a0ade8f9e/vmlinux-50d05c7c.xz kernel image: https://storage.googleapis.com/syzbot-assets/70b8ca71442b/bzImage-50d05c7c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b5a7cd83622c747977de@syzkaller.appspotmail.com 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: 6729 Comm: syz-executor606 Not tainted syzkaller #0 PREEMPT(full) 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: c3 cc cc cc cc e8 25 81 f3 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 78 ea 3e 91 48 RSP: 0018:ffffc90006fcf9e0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880574900ae RCX: 0000000000000000 RDX: 0000000000000065 RSI: ffffffff8917e0ab RDI: 0000000000000328 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000011 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000a R13: ffff88804f755048 R14: 0000000000000000 R15: 0000000000000021 FS: 0000000000000000(0000) GS:ffff888096960000(0063) knlGS:0000000057c2a3c0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000004c95e000 CR4: 0000000000352ef0 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+0x6db/0xbf0 drivers/hid/wacom_sys.c:182 __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+0x9dc/0xfe0 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_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7e60fec Code: Unable to access opcode bytes at 0xf7e60fc2. RSP: 002b:00000000ff8b597c EFLAGS: 00000213 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000080000300 RDX: 0000000000000010 RSI: 00000000000000a2 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wacom_intuos_irq+0x62b/0x3430 drivers/hid/wacom_wac.c:1036 Code: c3 cc cc cc cc e8 25 81 f3 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 78 ea 3e 91 48 RSP: 0018:ffffc90006fcf9e0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880574900ae RCX: 0000000000000000 RDX: 0000000000000065 RSI: ffffffff8917e0ab RDI: 0000000000000328 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000011 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000a R13: ffff88804f755048 R14: 0000000000000000 R15: 0000000000000021 FS: 0000000000000000(0000) GS:ffff888096960000(0063) knlGS:0000000057c2a3c0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7e61000 CR3: 000000004c95e000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: c3 ret 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: e8 25 81 f3 f8 call 0xf8f3812f 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 78 ea 3e 91 mov $0xffffffff913eea78,%rdi 3f: 48 rex.W --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup