Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc6-syzkaller-00019-g67784a74e258 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:llc_conn_state_process+0xa14/0x14c0 net/llc/llc_conn.c:141
Code: 8b 98 a0 01 00 00 e8 8b 7a 7e f8 45 84 e4 0f 84 85 08 00 00 e8 9d 78 7e f8 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a3 09 00 00 48 8b 44 24 08 c7
RSP: 0018:ffffc90000a18bd0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff890d47a5
RDX: 0000000000000000 RSI: ffffffff890d47b3 RDI: 0000000000000001
RBP: ffff88801dea43c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002
R13: ffffffff8c7e0b30 R14: ffff88807b90f000 R15: ffffffff8c7e0ae0
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa3512e18bc CR3: 000000005fbb0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 llc_process_tmr_ev net/llc/llc_c_ac.c:1445 [inline]
 llc_conn_tmr_common_cb+0x452/0x8e0 net/llc/llc_c_ac.c:1331
 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
 __run_timer_base kernel/time/timer.c:2428 [inline]
 __run_timer_base kernel/time/timer.c:2421 [inline]
 run_timer_base+0x111/0x190 kernel/time/timer.c:2437
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 c8 e1 ec 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 58 6a a5 00 fb f4 <fa> c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b16dc59
RDX: 0000000000000001 RSI: ffff8880216bb000 RDI: ffff8880216bb064
RBP: ffff8880216bb064 R08: 0000000000000001 R09: ffffed1017126fd9
R10: ffff8880b8937ecb R11: 0000000000000000 R12: ffff888021b59000
R13: ffffffff8e961d80 R14: 0000000000000001 R15: 0000000000000000
 acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:702
 cpuidle_enter_state+0x85/0x500 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
 cpuidle_idle_call kernel/sched/idle.c:230 [inline]
 do_idle+0x313/0x3f0 kernel/sched/idle.c:326
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
 start_secondary+0x220/0x2b0 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x148
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:llc_conn_state_process+0xa14/0x14c0 net/llc/llc_conn.c:141
Code: 8b 98 a0 01 00 00 e8 8b 7a 7e f8 45 84 e4 0f 84 85 08 00 00 e8 9d 78 7e f8 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a3 09 00 00 48 8b 44 24 08 c7
RSP: 0018:ffffc90000a18bd0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff890d47a5
RDX: 0000000000000000 RSI: ffffffff890d47b3 RDI: 0000000000000001
RBP: ffff88801dea43c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002
R13: ffffffff8c7e0b30 R14: ffff88807b90f000 R15: ffffffff8c7e0ae0
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa3512e18bc CR3: 000000005fbb0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8b 98 a0 01 00 00    	mov    0x1a0(%rax),%ebx
   6:	e8 8b 7a 7e f8       	call   0xf87e7a96
   b:	45 84 e4             	test   %r12b,%r12b
   e:	0f 84 85 08 00 00    	je     0x899
  14:	e8 9d 78 7e f8       	call   0xf87e78b6
  19:	48 89 da             	mov    %rbx,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 08                	je     0x3a
  32:	3c 03                	cmp    $0x3,%al
  34:	0f 8e a3 09 00 00    	jle    0x9dd
  3a:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  3f:	c7                   	.byte 0xc7