R13: 00007f4d4e006038 R14: 00007f4d4e005fa0 R15: 00007ffde55185f8
kobject: kobject_add_internal failed for i2c-2 (error: -12 parent: 5-1)
i2c-core: adapter 'DigitalNow DVB-T Dual USB': can't register device (-12)
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 6131 Comm: syz.0.143 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
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:162
complete_with_flags kernel/sched/completion.c:25 [inline]
complete+0x28/0x1b0 kernel/sched/completion.c:52
device_release+0xc4/0x1f0 drivers/base/core.c:-1
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x228/0x560 lib/kobject.c:737
i2c_register_adapter+0x78d/0x1180 drivers/i2c/i2c-core-base.c:1576
dvb_usb_i2c_init+0x202/0x2f0 drivers/media/usb/dvb-usb/dvb-usb-i2c.c:31
dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:183 [inline]
dvb_usb_device_init+0xf33/0x2590 drivers/media/usb/dvb-usb/dvb-usb-init.c:310
cxusb_probe+0x105/0x710 drivers/media/usb/dvb-usb/cxusb.c:1630
usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x267/0xaf0 drivers/base/dd.c:721
__driver_probe_device+0x18c/0x320 drivers/base/dd.c:863
driver_probe_device+0x4f/0x240 drivers/base/dd.c:893
__device_attach_driver+0x279/0x430 drivers/base/dd.c:1021
bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c5/0x450 drivers/base/dd.c:1093
proc_ioctl+0x447/0x6b0 drivers/usb/core/devio.c:2367
proc_ioctl_default+0xc4/0x110 drivers/usb/core/devio.c:2402
usbdev_do_ioctl drivers/usb/core/devio.c:2766 [inline]
usbdev_ioctl+0x134c/0x2120 drivers/usb/core/devio.c:2826
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d4dd9af39
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4d4eb80028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4d4e005fa0 RCX: 00007f4d4dd9af39
RDX: 0000200000000200 RSI: 00000000c0105512 RDI: 0000000000000004
RBP: 00007f4d4eb80090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f4d4e006038 R14: 00007f4d4e005fa0 R15: 00007ffde55185f8
BUG: unable to handle page fault for address: fffffffffffffff8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD e54f067 P4D e54f067 PUD e551067 PMD 0
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6131 Comm: syz.0.143 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
RIP: 0010:swake_up_locked kernel/sched/swait.c:30 [inline]
RIP: 0010:complete_with_flags kernel/sched/completion.c:29 [inline]
RIP: 0010:complete+0x99/0x1b0 kernel/sched/completion.c:52
Code: 89 e7 e8 2a 0a 93 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 80 3c 28 00 74 05 e8 07 0a 93 00 <49> 8b 7f f8 be 03 00 00 00 31 d2 e8 87 21 f6 ff 4c 89 ff e8 3f 40
RSP: 0018:ffffc9000d22f3f8 EFLAGS: 00010046
RAX: 1fffffffffffffff RBX: ffff888037a79680 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8
RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001a45e6c R12: ffff888037a796c0
R13: 0000000000000001 R14: 0000000000000286 R15: 0000000000000000
FS: 00007f4d4eb806c0(0000) GS:ffff88808ca4e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 0000000040c66000 CR4: 0000000000352ef0
Call Trace:
device_release+0xc4/0x1f0 drivers/base/core.c:-1
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x228/0x560 lib/kobject.c:737
i2c_register_adapter+0x78d/0x1180 drivers/i2c/i2c-core-base.c:1576
dvb_usb_i2c_init+0x202/0x2f0 drivers/media/usb/dvb-usb/dvb-usb-i2c.c:31
dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:183 [inline]
dvb_usb_device_init+0xf33/0x2590 drivers/media/usb/dvb-usb/dvb-usb-init.c:310
cxusb_probe+0x105/0x710 drivers/media/usb/dvb-usb/cxusb.c:1630
usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x267/0xaf0 drivers/base/dd.c:721
__driver_probe_device+0x18c/0x320 drivers/base/dd.c:863
driver_probe_device+0x4f/0x240 drivers/base/dd.c:893
__device_attach_driver+0x279/0x430 drivers/base/dd.c:1021
bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
__device_attach+0x2c5/0x450 drivers/base/dd.c:1093
proc_ioctl+0x447/0x6b0 drivers/usb/core/devio.c:2367
proc_ioctl_default+0xc4/0x110 drivers/usb/core/devio.c:2402
usbdev_do_ioctl drivers/usb/core/devio.c:2766 [inline]
usbdev_ioctl+0x134c/0x2120 drivers/usb/core/devio.c:2826
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d4dd9af39
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4d4eb80028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4d4e005fa0 RCX: 00007f4d4dd9af39
RDX: 0000200000000200 RSI: 00000000c0105512 RDI: 0000000000000004
RBP: 00007f4d4eb80090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f4d4e006038 R14: 00007f4d4e005fa0 R15: 00007ffde55185f8
Modules linked in:
CR2: fffffffffffffff8
---[ end trace 0000000000000000 ]---
RIP: 0010:swake_up_locked kernel/sched/swait.c:30 [inline]
RIP: 0010:complete_with_flags kernel/sched/completion.c:29 [inline]
RIP: 0010:complete+0x99/0x1b0 kernel/sched/completion.c:52
Code: 89 e7 e8 2a 0a 93 00 4d 8b 3c 24 4d 39 e7 0f 84 d4 00 00 00 49 8d 7f f8 48 89 f8 48 c1 e8 03 80 3c 28 00 74 05 e8 07 0a 93 00 <49> 8b 7f f8 be 03 00 00 00 31 d2 e8 87 21 f6 ff 4c 89 ff e8 3f 40
RSP: 0018:ffffc9000d22f3f8 EFLAGS: 00010046
RAX: 1fffffffffffffff RBX: ffff888037a79680 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffffffffffffff8
RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001a45e6c R12: ffff888037a796c0
R13: 0000000000000001 R14: 0000000000000286 R15: 0000000000000000
FS: 00007f4d4eb806c0(0000) GS:ffff88808ca4e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 0000000040c66000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 89 e7 mov %esp,%edi
2: e8 2a 0a 93 00 call 0x930a31
7: 4d 8b 3c 24 mov (%r12),%r15
b: 4d 39 e7 cmp %r12,%r15
e: 0f 84 d4 00 00 00 je 0xe8
14: 49 8d 7f f8 lea -0x8(%r15),%rdi
18: 48 89 f8 mov %rdi,%rax
1b: 48 c1 e8 03 shr $0x3,%rax
1f: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1)
23: 74 05 je 0x2a
25: e8 07 0a 93 00 call 0x930a31
* 2a: 49 8b 7f f8 mov -0x8(%r15),%rdi <-- trapping instruction
2e: be 03 00 00 00 mov $0x3,%esi
33: 31 d2 xor %edx,%edx
35: e8 87 21 f6 ff call 0xfff621c1
3a: 4c 89 ff mov %r15,%rdi
3d: e8 .byte 0xe8
3e: 3f (bad)
3f: 40 rex