WARNING in drm_plane_create_rotation_property

Status: upstream: reported C repro on 2026/09/24 11:36
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+f5e7c1d1d7689de59253@syzkaller.appspotmail.com
First crash: 12d, last: 3d07h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/10/03 linux-6.6.y (ToT) 79643295eba1 C [report] WARNING in drm_plane_create_rotation_property
2026/10/03 upstream (ToT) e767a4ea70a3 C Didn't crash
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in drm_plane_create_rotation_property prio:high usb dri -1 syz, C error 12 27d 46d 27/29 upstream: reported C repro on 2026/08/20 13:39
linux-6.1 WARNING in drm_plane_create_rotation_property -1 syz, C 3 12d 12d 0/3 upstream: reported C repro on 2026/09/24 09:16

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 found, idVendor=1d50, idProduct=614d, bcdDevice= 1.00
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8 at drivers/gpu/drm/drm_blend.c:288 drm_plane_create_rotation_property+0x18b/0x1b0 drivers/gpu/drm/drm_blend.c:288
Modules linked in:
CPU: 0 PID: 8 Comm: kworker/0:0 Not tainted syzkaller #0
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+0x18b/0x1b0 drivers/gpu/drm/drm_blend.c:288
Code: 89 33 31 c0 5b 41 5c 41 5e 41 5f 5d c3 e8 4d bb c0 fc 0f 0b e9 bd fe ff ff e8 41 bb c0 fc 0f 0b e9 ef fe ff ff e8 35 bb c0 fc <0f> 0b e9 03 ff ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 8e 4c 89
RSP: 0018:ffffc900000d6cf0 EFLAGS: 00010293
RAX: ffffffff84c6d01b RBX: ffff88807adc9308 RCX: ffff88801b275a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8b2f8f40
R10: dffffc0000000000 R11: fffffbfff223d6af R12: 0000000000000032
R13: ffff88802174a400 R14: 0000000000000034 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000480 CR3: 00000000633c6000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gud_get_properties+0x225/0x3d0 drivers/gpu/drm/gud/gud_drv.c:291
 gud_probe+0x1067/0x1400 drivers/gpu/drm/gud/gud_drv.c:593
 usb_probe_interface+0x6eb/0xcf0 drivers/usb/core/driver.c:395
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x247/0xae0 drivers/base/dd.c:717
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
 __device_attach+0x2c1/0x420 drivers/base/dd.c:1109
 bus_probe_device+0x180/0x260 drivers/base/bus.c:580
 device_add+0x87c/0xc40 drivers/base/core.c:3700
 usb_set_configuration+0x1ad0/0x2150 drivers/usb/core/message.c:2265
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x12a/0x260 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x247/0xae0 drivers/base/dd.c:717
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
 __device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
 bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
 __device_attach+0x2c1/0x420 drivers/base/dd.c:1109
 bus_probe_device+0x180/0x260 drivers/base/bus.c:580
 device_add+0x87c/0xc40 drivers/base/core.c:3700
 usb_new_device+0x995/0x1550 drivers/usb/core/hub.c:2665
 hub_port_connect drivers/usb/core/hub.c:5534 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5674 [inline]
 port_event drivers/usb/core/hub.c:5838 [inline]
 hub_event+0x29d5/0x4a80 drivers/usb/core/hub.c:5920
 process_one_work kernel/workqueue.c:2657 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/27 13:35 linux-6.6.y 79643295eba1 a3c7249d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in drm_plane_create_rotation_property
2026/09/24 11:35 linux-6.6.y 79643295eba1 0281b448 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in drm_plane_create_rotation_property
2026/09/24 11:35 linux-6.6.y 79643295eba1 0281b448 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in drm_plane_create_rotation_property
* Struck through repros no longer work on HEAD.