WARNING in drm_plane_create_rotation_property

Status: upstream: reported C repro on 2026/08/20 13:39
Subsystems: dri usb
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+efe2810681f1b065d3a8@syzkaller.appspotmail.com
First crash: 4d03h, last: 2d03h
✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
6d0e20ce assessment-security DenialOfService: ❌ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ✅ WARNING in drm_plane_create_rotation_property 2026/08/17 01:04 2026/08/17 01:04 2026/08/17 01:35 746171ee
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [dri?] [usb?] WARNING in drm_plane_create_rotation_property 0 (1) 2026/08/20 13:39

Sample crash report:
usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 0
usb 4-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 2
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
------------[ cut here ]------------
rotation & ~supported_rotations
WARNING: drivers/gpu/drm/drm_blend.c:309 at drm_plane_create_rotation_property+0x1aa/0x1f0 drivers/gpu/drm/drm_blend.c:309, CPU#1: kworker/1:1/28
Modules linked in:
CPU: 1 UID: 0 PID: 28 Comm: kworker/1:1 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:drm_plane_create_rotation_property+0x1aa/0x1f0 drivers/gpu/drm/drm_blend.c:309
Code: 5d 41 5e c3 cc cc cc cc e8 93 16 74 fe 90 0f 0b 90 e9 a1 fe ff ff e8 85 16 74 fe 90 0f 0b 90 e9 ba fe ff ff e8 77 16 74 fe 90 <0f> 0b 90 e9 cd fe ff ff e8 49 85 dc fe eb 87 bb f4 ff ff ff eb b0
RSP: 0018:ffffc900001e6eb0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888118438d60 RCX: ffffffff833ffcd6
RDX: ffff8881026f1e00 RSI: ffffffff833ffe09 RDI: ffff8881026f1e00
RBP: 0000000000000034 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000000 R15: ffff888118438000
FS:  0000000000000000(0000) GS:ffff888268733000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba2f8fd2d8 CR3: 0000000117c22000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gud_plane_add_properties drivers/gpu/drm/gud/gud_drv.c:292 [inline]
 gud_probe+0x11a5/0x1c20 drivers/gpu/drm/gud/gud_drv.c:622
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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:293
 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:2708
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 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+0x69a/0xc80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/16 19:07 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 746171ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
2026/08/16 17:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 746171ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
2026/08/16 16:20 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 746171ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
2026/08/16 15:00 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 746171ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
2026/08/18 12:59 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
2026/08/16 13:35 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing bdab5605259b 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in drm_plane_create_rotation_property
* Struck through repros no longer work on HEAD.