Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 17512 Comm: syz.0.2640 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:llc_conn_state_process+0xd07/0x1360 net/llc/llc_conn.c:-1
Code: 4c 89 f7 e8 1b 6a 93 f8 31 c0 84 db 0f 94 c0 4d 8b 36 8d 5c 00 01 b8 01 00 00 00 bd 07 00 00 00 0f 44 e8 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 0e 06 00 00 41 89 1e 43 0f b6 04 2c 84
RSP: 0000:ffffc90003a9faf0 EFLAGS: 00010256
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888029b01ec0 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffff888029b01ec0 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000100 R12: 1ffff1100fa7cc02
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807d3e6012
FS:  00007f5dc7c4a6c0(0000) GS:ffff88812538d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dbd9b3000 CR3: 0000000051e73000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 llc_process_tmr_ev net/llc/llc_c_ac.c:1448 [inline]
 llc_conn_tmr_common_cb+0x34a/0x790 net/llc/llc_c_ac.c:1331
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7f5dc6c541ce
Code: c1 49 39 4f 08 72 54 8d 4d ff 85 ed 74 3b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 <47> 0f b6 0c 08 45 84 c9 74 08 45 88 0c 00 49 8b 47 10 48 83 c0 01
RSP: 002b:00007f5dc7c49470 EFLAGS: 00000206
RAX: 0000000000fb3c51 RBX: 00007f5dc7c49530 RCX: 000000000000009d
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f5dc7c495d0
RBP: 0000000000000102 R08: 00007f5dbca00000 R09: 0000000000fb3c50
R10: 0000000000000000 R11: 00007f5dc7c49540 R12: 0000000000000001
R13: 00007f5dc6e52900 R14: 0000000000000000 R15: 00007f5dc7c495d0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:llc_conn_state_process+0xd07/0x1360 net/llc/llc_conn.c:-1
Code: 4c 89 f7 e8 1b 6a 93 f8 31 c0 84 db 0f 94 c0 4d 8b 36 8d 5c 00 01 b8 01 00 00 00 bd 07 00 00 00 0f 44 e8 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 0e 06 00 00 41 89 1e 43 0f b6 04 2c 84
RSP: 0000:ffffc90003a9faf0 EFLAGS: 00010256
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888029b01ec0 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffff888029b01ec0 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000100 R12: 1ffff1100fa7cc02
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807d3e6012
FS:  00007f5dc7c4a6c0(0000) GS:ffff88812538d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dbd9b3000 CR3: 0000000051e73000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	4c 89 f7             	mov    %r14,%rdi
   3:	e8 1b 6a 93 f8       	call   0xf8936a23
   8:	31 c0                	xor    %eax,%eax
   a:	84 db                	test   %bl,%bl
   c:	0f 94 c0             	sete   %al
   f:	4d 8b 36             	mov    (%r14),%r14
  12:	8d 5c 00 01          	lea    0x1(%rax,%rax,1),%ebx
  16:	b8 01 00 00 00       	mov    $0x1,%eax
  1b:	bd 07 00 00 00       	mov    $0x7,%ebp
  20:	0f 44 e8             	cmove  %eax,%ebp
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 0e 06 00 00    	jne    0x645
  37:	41 89 1e             	mov    %ebx,(%r14)
  3a:	43 0f b6 04 2c       	movzbl (%r12,%r13,1),%eax
  3f:	84                   	.byte 0x84