WARNING in drm_property_add_enum

Status: upstream: reported C repro on 2026/08/16 06:30
Subsystems: usb dri
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+916c888ba5f1a54c9526@syzkaller.appspotmail.com
Fix commit: 500cb24cd61b drm/gud: NUL-terminate TV mode names read from the device
Patched on: [ci-qemu-gce-upstream-auto ci-qemu-native-arm64-kvm ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-snapshot-upstream-root ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci-upstream-rust-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root]
First crash: 50d, last: 24d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (6)
ID Workflow Result Correct Bug Created Started Finished Revision
4dfd0a53 assessment-security DenialOfService: ✅ Exploitable: ✅ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ WARNING in drm_property_add_enum 2026/09/17 01:36 2026/09/17 01:36 2026/09/17 02:23 95928915
abea8616 assessment-security 💥 WARNING in drm_property_add_enum 2026/08/31 01:01 2026/08/31 01:01 2026/08/31 01:01 2f52988a
c597e18e assessment-security 💥 WARNING in drm_property_add_enum 2026/08/22 01:08 2026/08/22 01:08 2026/08/22 01:08 1e72964b
02e8b9ea assessment-security 💥 WARNING in drm_property_add_enum 2026/08/17 03:04 2026/08/17 03:04 2026/08/17 03:04 746171ee
eefbd8d9 assessment-security 💥 WARNING in drm_property_add_enum 2026/08/15 00:03 2026/08/15 00:03 2026/08/15 00:03 746171ee
f6813d85 assessment-security 💥 WARNING in drm_property_add_enum 2026/08/13 00:35 2026/08/13 00:35 2026/08/13 00:35 a56bc0a5
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[PATCH] drm/gud: NUL-terminate TV mode names read from the device 4 (4) 2026/08/23 15:59
Re: [PATCH] drm/gud: NUL-terminate TV mode names read from the device 1 (1) 2026/08/17 15:36
[syzbot] [dri?] WARNING in drm_property_add_enum 0 (2) 2026/08/16 08:23
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in drm_property_add_enum -1 syz, C 1 22d 40d 0/3 upstream: reported C repro on 2026/08/23 01:06
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2026/08/16 08:23 19m kartikey406@gmail.com patch upstream OK job log log

Sample crash report:
usb 1-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 2
usb 1-1: 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+0x403/0x4c0 drivers/gpu/drm/drm_property.c:396, CPU#1: kworker/1:3/5643
Modules linked in:
CPU: 1 UID: 0 PID: 5643 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:drm_property_add_enum+0x403/0x4c0 drivers/gpu/drm/drm_property.c:396
Code: 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d4 2a 49 06 cc e8 5e c3 3a fc 90 0f 0b 90 b8 ea ff ff ff eb dc e8 4e c3 3a fc 90 <0f> 0b 90 b8 ea ff ff ff eb cc e8 3e c3 3a fc 90 0f 0b 90 b8 ea ff
RSP: 0000:ffffc90003d36a78 EFLAGS: 00010293
RAX: ffffffff858c3e62 RBX: 0000000000000050 RCX: ffff888076529f00
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 000000000000001f
RBP: ffff88803440ce00 R08: 0000000000000007 R09: 0000000000000001
R10: ffff88803440ce39 R11: ffffed10068819cb R12: 0000000000000000
R13: ffffc90003d36c40 R14: 0000000000000000 R15: ffff88803440ce00
FS:  0000000000000000(0000) GS:ffff888125049000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f71fd540 CR3: 00000000262ee000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 drm_mode_create_tv_properties_legacy+0x1db/0x3f0 drivers/gpu/drm/drm_connector.c:2216
 gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:402 [inline]
 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+0xe66/0x1a50 drivers/gpu/drm/gud/gud_connector.c:717
 gud_probe+0x1125/0x13b0 drivers/gpu/drm/gud/gud_drv.c:635
 usb_probe_interface+0x653/0xc60 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2703
 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+0x28e8/0x4d30 drivers/usb/core/hub.c:5961
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (271):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/17 19:58 upstream 8d3ae59288f1 1e72964b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in drm_property_add_enum
2026/08/29 14:14 upstream cf72cbb39da8 2f52988a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in drm_property_add_enum
2026/08/29 17:51 upstream cf72cbb39da8 2f52988a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in drm_property_add_enum
2026/08/12 12:54 upstream f5bbbfec59b4 ee03bfea .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in drm_property_add_enum
2026/08/12 16:01 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 f8d35649 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/08/12 13:58 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 f8d35649 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/08/12 12:02 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 f8d35649 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/08/12 10:05 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 f8d35649 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/08/12 08:18 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 f8d35649 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 11:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f1b8fa82cab7 6a988719 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in drm_property_add_enum
2026/08/30 14:06 upstream 08dbfad3f504 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_property_add_enum
2026/08/20 17:09 upstream a4ff2be345d0 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_property_add_enum
2026/08/14 12:49 upstream 2f1baf1fc892 b13552fe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in drm_property_add_enum
2026/09/07 13:32 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 680aa3e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/07 07:41 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/07 02:01 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 17:57 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 16:04 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 14:47 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 12:33 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 09:00 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 06:41 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/06 05:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 23:41 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 21:57 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 20:20 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 15:07 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 14:00 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 07:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 05:49 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/05 03:50 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/04 22:01 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 f65209a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/04 18:14 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 f65209a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/04 16:10 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 f65209a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/04 10:52 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 f65209a4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 22:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 07:32 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 05:04 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 01:26 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/03 00:13 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 19:50 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 18:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 12:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 10:51 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 07:12 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 03:48 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/02 03:20 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing edc1518454f6 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 23:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 22:16 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 18:24 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 16:51 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 15:42 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 13:05 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 10:02 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
2026/09/01 08:11 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5704a4065c2c 316d9396 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_property_add_enum
* Struck through repros no longer work on HEAD.