Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 UID: 0 PID: 7182 Comm: kworker/u8:15 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: gid-cache-wq netdevice_event_work_handler
RIP: 0010:gb_operation_message_init drivers/greybus/operation.c:340 [inline]
RIP: 0010:gb_operation_message_alloc+0x174/0x280 drivers/greybus/operation.c:385
Code: 00 e8 10 29 90 f8 48 8b 3d 39 39 a2 12 48 89 de e8 11 87 f5 f8 e9 94 00 00 00 e8 f7 28 90 f8 41 83 c7 08 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 91 00 00 00 66 45 89 3e 49 8d 7e 02 48 89
RSP: 0018:ffffc900000078a8 EFLAGS: 00010002
RAX: 0000000000000002 RBX: ffff88802b2e1ec0 RCX: 0000000000040000
RDX: ffffc900020d1000 RSI: 00000000000000a4 RDI: 00000000000000a5
RBP: dffffc0000000000 R08: 0000000000000100 R09: 0000000000000000
R10: ffff88802b2e1ec0 R11: fffffbfff20b431f R12: 0000000000000000
R13: 0000000000000800 R14: 0000000000000010 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000001c0 CR3: 000000003d4ac000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
gb_operation_create_common+0xa9/0x650 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+0x284/0x1280 drivers/greybus/operation.c:1063
greybus_data_rcvd+0x22c/0x550 drivers/greybus/connection.c:89
cport_in_callback+0x1bd/0x3b0 drivers/greybus/es2.c:840
__usb_hcd_giveback_urb+0x378/0x540 drivers/usb/core/hcd.c:1657
dummy_timer+0xa91/0x4cc0 drivers/usb/gadget/udc/dummy_hcd.c:2023
__run_hrtimer kernel/time/hrtimer.c:2074 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2131
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2148
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:poison_slab_object mm/kasan/common.c:264 [inline]
RIP: 0010:__kasan_slab_free+0x51/0x80 mm/kasan/common.c:296
Code: c6 85 c9 75 35 40 20 c6 75 30 44 89 c5 49 89 fe 8b 77 1c ff ce 83 ce 07 ff c6 0f b6 ca 48 89 df ba fb 00 00 00 e8 df 37 00 00 <4c> 89 f7 48 89 de e8 14 2c 00 00 40 84 ed 74 0c 31 c0 5b 41 5e 5d
RSP: 0018:ffffc9000344fa60 EFLAGS: 00000246
RAX: ffffed100fc40e20 RBX: ffff88807e207100 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000000fb RDI: ffffed100fc40e38
RBP: 0000000000000000 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffed100fc40e20 R11: fffffbfff22f4e50 R12: ffff88807e207100
R13: 0000000000000000 R14: ffff88801c0413c0 R15: ffff88801c0413c0
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2748 [inline]
slab_free mm/slub.c:6509 [inline]
kfree+0x1c5/0x650 mm/slub.c:6802
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 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
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gb_operation_message_init drivers/greybus/operation.c:340 [inline]
RIP: 0010:gb_operation_message_alloc+0x174/0x280 drivers/greybus/operation.c:385
Code: 00 e8 10 29 90 f8 48 8b 3d 39 39 a2 12 48 89 de e8 11 87 f5 f8 e9 94 00 00 00 e8 f7 28 90 f8 41 83 c7 08 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 91 00 00 00 66 45 89 3e 49 8d 7e 02 48 89
RSP: 0018:ffffc900000078a8 EFLAGS: 00010002
RAX: 0000000000000002 RBX: ffff88802b2e1ec0 RCX: 0000000000040000
RDX: ffffc900020d1000 RSI: 00000000000000a4 RDI: 00000000000000a5
RBP: dffffc0000000000 R08: 0000000000000100 R09: 0000000000000000
R10: ffff88802b2e1ec0 R11: fffffbfff20b431f R12: 0000000000000000
R13: 0000000000000800 R14: 0000000000000010 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000001c0 CR3: 000000003d4ac000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 e8 add %ch,%al
2: 10 29 adc %ch,(%rcx)
4: 90 nop
5: f8 clc
6: 48 8b 3d 39 39 a2 12 mov 0x12a23939(%rip),%rdi # 0x12a23946
d: 48 89 de mov %rbx,%rsi
10: e8 11 87 f5 f8 call 0xf8f58726
15: e9 94 00 00 00 jmp 0xae
1a: e8 f7 28 90 f8 call 0xf8902916
1f: 41 83 c7 08 add $0x8,%r15d
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 91 00 00 00 jne 0xc7
36: 66 45 89 3e mov %r15w,(%r14)
3a: 49 8d 7e 02 lea 0x2(%r14),%rdi
3e: 48 rex.W
3f: 89 .byte 0x89