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AHgh+RrWbKw2PfbBuktFXqdNfXd0yyHY1rz18fYbe18VAqMpo7vam9Kjfbyk9hQKl3LOieuJKf59vEX4nH2Vn64=@vger.kernel.org X-Gm-Message-State: AOJu0YyspIESh00IyV4e72cZ0lZKpoaY3FdBhkSf1VCea+wjlYn3ArmD bzxbWrq0JoOZZaD6oNV2V0mEoomJCRP1X+iIRUU4BpJ60nztxAUOVpyLyoS2NWTWqZU8Ck1xQ3D hwcNWUmBCVJO8zjvJjftNWH3WzttG5ASErcgMpc5L1Q+E6CyuOhOwql8cGdc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:e841:0:b0:6ac:c22f:608 with SMTP id 006d021491bc7-6b0d67524edmr14928586eaf.19.1786861834077; Sat, 15 Aug 2026 23:30:34 -0700 (PDT) Date: Sat, 15 Aug 2026 23:30:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a81590a.dbb3a75c.20434b.002a.GAE@google.com> Subject: [syzbot] [dri?] WARNING in drm_property_add_enum From: syzbot To: airlied@gmail.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, rubenru09@aol.com, simona@ffwll.ch, syzkaller-bugs@googlegroups.com, tzimmermann@suse.de Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f5bbbfec59b4 Merge tag 'probes-fixes-v7.2-rc7' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=132db479580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8a233ed2ce9a8096 dashboard link: https://syzkaller.appspot.com/bug?extid=916c888ba5f1a54c9526 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=105c4c79580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15a91149580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-f5bbbfec.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/48f3b996e46b/vmlinux-f5bbbfec.xz kernel image: https://storage.googleapis.com/syzbot-assets/523783d7181e/bzImage-f5bbbfec.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+916c888ba5f1a54c9526@syzkaller.appspotmail.com usb 5-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 2 usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 ------------[ cut here ]------------ strlen(name) >= DRM_PROP_NAME_LEN WARNING: drivers/gpu/drm/drm_property.c:396 at drm_property_add_enum+0x4ac/0x590 drivers/gpu/drm/drm_property.c:396, CPU#2: kworker/2:3/5894 Modules linked in: CPU: 2 UID: 0 PID: 5894 Comm: kworker/2:3 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 Workqueue: usb_hub_wq hub_event RIP: 0010:drm_property_add_enum+0x4ac/0x590 drivers/gpu/drm/drm_property.c:396 Code: 03 80 3c 02 00 0f 85 89 00 00 00 49 89 2c 24 31 db e9 fc fc ff ff e8 f3 e9 43 fc 90 0f 0b 90 e9 e9 fc ff ff e8 e5 e9 43 fc 90 <0f> 0b 90 e9 db fc ff ff e8 87 7e b3 fc e9 b3 fb ff ff e8 cd e9 43 RSP: 0000:ffffc90002fd6cf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000050 RCX: ffffffff85c5e14d RDX: ffff888027ba0000 RSI: ffffffff85c5e5bb RDI: ffff888027ba0000 RBP: 0000000000000000 R08: 0000000000000007 R09: 000000000000001f R10: 0000000000000050 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000005 R14: ffff88802a8e4100 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888096df3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d682c98168 CR3: 000000004ce67000 CR4: 0000000000352ef0 Call Trace: drm_mode_create_tv_properties_legacy+0x3e9/0x4c0 drivers/gpu/drm/drm_connector.c:2216 gud_connector_add_tv_mode+0x1d7/0x2b0 drivers/gpu/drm/gud/gud_connector.c:402 gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0xbd9/0x1700 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0x17aa/0x1c20 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:706 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153 bus_probe_device+0x64/0x160 drivers/base/bus.c:620 device_add+0x121d/0x1970 drivers/base/core.c:3772 usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:706 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153 bus_probe_device+0x64/0x160 drivers/base/bus.c:620 device_add+0x121d/0x1970 drivers/base/core.c:3772 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2703 usb_new_device include/linux/workqueue.h:714 [inline] hub_port_connect drivers/usb/core/hub.c:5575 [inline] hub_port_connect_change drivers/usb/core/hub.c:5715 [inline] port_event drivers/usb/core/hub.c:5879 [inline] hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5961 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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