Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 13224 Comm: syz.8.1972 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:llc_conn_state_process+0xd09/0x1360 net/llc/llc_conn.c:-1
Code: 4c 89 f7 e8 d9 1e 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: 0018:ffffc90000007bd0 EFLAGS: 00010256
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888033445b80 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffff888033445b80 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000100 R12: 1ffff1100f323c02
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807991e012
FS:  00007f73e4c656c0(0000) GS:ffff88812545d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73e3d85440 CR3: 0000000056581000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 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+0x192/0x640 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x22a/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rdmsr_safe_on_cpu+0x196/0x2b0 arch/x86/lib/msr-smp.c:-1
Code: e8 cf 7d d9 fc 45 85 e4 74 07 e8 85 79 d9 fc eb 19 49 83 c7 20 e8 7a 79 d9 fc 4c 89 ff e8 92 d5 c3 06 44 8b a4 24 98 00 00 00 <4c> 8b 6c 24 10 44 8b bc 24 88 00 00 00 48 8b 7c 24 18 48 89 f8 48
RSP: 0018:ffffc90004bdfa40 EFLAGS: 00000246
RAX: f5f85f47c9af8300 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8def8bf9 RDI: 00000000ffffffff
RBP: ffffc90004bdfbb0 R08: ffffffff9011b3b7 R09: 1ffffffff2023676
R10: dffffc0000000000 R11: fffffbfff2023677 R12: 0000000000000000
R13: 0000000000000000 R14: 1ffff9200097bf4c R15: ffffc90004bdfae0
 msr_read+0x150/0x250 arch/x86/kernel/msr.c:66
 vfs_read+0x20c/0xa70 fs/read_write.c:572
 ksys_read+0x150/0x270 fs/read_write.c:717
 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: 0033:0x7f73e3d9c799
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:00007f73e4c65028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f73e4015fa0 RCX: 00007f73e3d9c799
RDX: 0000000000018ff8 RSI: 0000200000019680 RDI: 0000000000000003
RBP: 00007f73e3e32c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f73e4016038 R14: 00007f73e4015fa0 R15: 00007fff9387c978
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:llc_conn_state_process+0xd09/0x1360 net/llc/llc_conn.c:-1
Code: 4c 89 f7 e8 d9 1e 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: 0018:ffffc90000007bd0 EFLAGS: 00010256
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888033445b80 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffff888033445b80 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000100 R12: 1ffff1100f323c02
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807991e012
FS:  00007f73e4c656c0(0000) GS:ffff88812545d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f73e3d85440 CR3: 0000000056581000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	4c 89 f7             	mov    %r14,%rdi
   3:	e8 d9 1e 93 f8       	call   0xf8931ee1
   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