Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 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:gb_operation_message_init drivers/greybus/operation.c:340 [inline]
RIP: 0010:gb_operation_message_alloc+0x186/0x2c0 drivers/greybus/operation.c:385
Code: 00 e8 ce 22 99 fb 41 80 fd 7f 0f 84 b9 00 00 00 e8 af 28 99 fb 48 89 ea 41 83 c4 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e b8 00 00 00 48 8d 7d 02 66 44
RSP: 0018:ffffc900001b89f0 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff888118238ec0 RCX: ffffc90001202000
RDX: 0000000000000002 RSI: ffffffff861ba741 RDI: ffff8881026fdac0
RBP: 0000000000000010 R08: 0000000000000001 R09: 000000000000007f
R10: 0000000000000040 R11: ffffffff821f50ee R12: 0000000000000000
R13: 0000000000000040 R14: 0000000000000800 R15: 0000000000000018
FS: 0000000000000000(0000) GS:ffff8882684eb000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000013c0 CR3: 0000000113560000 CR4: 00000000003506f0
Call Trace:
gb_operation_create_common+0x9f/0x710 drivers/greybus/operation.c:532
gb_operation_create_incoming drivers/greybus/operation.c:644 [inline]
gb_connection_recv_request drivers/greybus/operation.c:926 [inline]
gb_connection_recv+0x1dc/0x1050 drivers/greybus/operation.c:1063
greybus_data_rcvd+0x244/0x600 drivers/greybus/connection.c:89
cport_in_callback+0x1fb/0x280 drivers/greybus/es2.c:840
__usb_hcd_giveback_urb+0x38e/0x610 drivers/usb/core/hcd.c:1657
usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741
dummy_timer+0xdb2/0x3700 drivers/usb/gadget/udc/dummy_hcd.c:2019
__run_hrtimer kernel/time/hrtimer.c:2067 [inline]
__hrtimer_run_queues+0x462/0x9c0 kernel/time/hrtimer.c:2124
hrtimer_run_softirq+0x1ca/0x360 kernel/time/hrtimer.c:2141
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x192/0x210 kernel/softirq.c:767
irq_exit_rcu+0x9/0x30 kernel/softirq.c:784
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:bus_to_subsys+0xcf/0x150 drivers/base/bus.c:77
Code: 85 8e 00 00 00 48 8b 43 08 48 8d 58 f8 48 39 c5 74 6b e8 d4 67 de fd 48 8d bb 50 02 00 00 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <75> 60 4c 39 ab 50 02 00 00 75 b5 e8 b1 67 de fd 4c 8d 63 b0 e8 a8
RSP: 0018:ffffc9000019f080 EFLAGS: 00000246
RAX: 1ffff11020856d54 RBX: ffff8881042b6850 RCX: ffffc9001165e000
RDX: 0000000000100000 RSI: ffffffff83d6681c RDI: ffff8881042b6aa0
RBP: ffff888101e90c00 R08: 0000000000000001 R09: fffff52000033e02
R10: 0000000000000003 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffffff8836bb80 R14: 0000000000000000 R15: ffff8881218b20d8
bus_notify+0x37/0x80 drivers/base/bus.c:1081
driver_bound+0x131/0x220 drivers/base/dd.c:468
really_probe+0x3d4/0xa60 drivers/base/dd.c:756
__driver_probe_device+0x210/0x460 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:3776
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+0x210/0x460 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:3776
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+0xac7/0x1b10 kernel/workqueue.c:3387
process_scheduled_works kernel/workqueue.c:3470 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
kthread+0x373/0x450 kernel/kthread.c:436
ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gb_operation_message_init drivers/greybus/operation.c:340 [inline]
RIP: 0010:gb_operation_message_alloc+0x186/0x2c0 drivers/greybus/operation.c:385
Code: 00 e8 ce 22 99 fb 41 80 fd 7f 0f 84 b9 00 00 00 e8 af 28 99 fb 48 89 ea 41 83 c4 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 01 0f 8e b8 00 00 00 48 8d 7d 02 66 44
RSP: 0018:ffffc900001b89f0 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff888118238ec0 RCX: ffffc90001202000
RDX: 0000000000000002 RSI: ffffffff861ba741 RDI: ffff8881026fdac0
RBP: 0000000000000010 R08: 0000000000000001 R09: 000000000000007f
R10: 0000000000000040 R11: ffffffff821f50ee R12: 0000000000000000
R13: 0000000000000040 R14: 0000000000000800 R15: 0000000000000018
FS: 0000000000000000(0000) GS:ffff8882684eb000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000013c0 CR3: 0000000113560000 CR4: 00000000003506f0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e8 ce 22 99 fb call 0xfb9922d3
5: 41 80 fd 7f cmp $0x7f,%r13b
9: 0f 84 b9 00 00 00 je 0xc8
f: e8 af 28 99 fb call 0xfb9928c3
14: 48 89 ea mov %rbp,%rdx
17: 41 83 c4 08 add $0x8,%r12d
1b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
22: fc ff df
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2d: 84 c0 test %al,%al
2f: 74 08 je 0x39
31: 3c 01 cmp $0x1,%al
33: 0f 8e b8 00 00 00 jle 0xf1
39: 48 8d 7d 02 lea 0x2(%rbp),%rdi
3d: 66 data16
3e: 44 rex.R