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: 7495 Comm: syz.1.412 Not tainted 6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:llc_conn_state_process+0xc5d/0x12e0
Code: 0f 94 c0 4c 8b 75 00 44 8d 64 00 01 b8 01 00 00 00 bd 07 00 00 00 0f 44 e8 4c 89 f0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df <0f> b6 04 10 84 c0 0f 85 c1 05 00 00 45 89 26 0f b6 04 13 84 c0 0f
RSP: 0018:ffffc90000a18ae8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff1100c92dc02 RCX: ffff888011cb5a00
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffffffff89a89271 R09: ffffffff89a89058
R10: 0000000000000005 R11: ffff888011cb5a00 R12: 0000000000000001
R13: ffff88806496e000 R14: 0000000000000000 R15: ffff88806496e012
FS:  00007f25a3fd86c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000060e4e000 CR4: 00000000003526f0
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+0x34c/0x850 net/llc/llc_c_ac.c:1331
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794
 expire_timers kernel/time/timer.c:1845 [inline]
 __run_timers kernel/time/timer.c:2419 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__asan_memset+0x27/0x50 mm/kasan/shadow.c:87
Code: 90 90 90 f3 0f 1e fa 55 41 56 53 48 89 d3 41 89 f6 48 89 fd 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 fd e5 ff ff 84 c0 74 12 <48> 89 ef 44 89 f6 48 89 da 5b 41 5e 5d e9 67 fb c2 09 31 c0 5b 41
RSP: 0018:ffffc90002ecf220 EFLAGS: 00000202
RAX: ffff888056d9a201 RBX: 0000000000000048 RCX: ffffffff846db213
RDX: 0000000000000001 RSI: 0000000000000048 RDI: ffffc90002ecf3d0
RBP: ffffc90002ecf3d0 R08: ffffc90002ecf417 R09: 1ffff920005d9e82
R10: dffffc0000000000 R11: fffff520005d9e83 R12: ffffc90002ecf440
R13: ffff88804f118280 R14: 0000000000000000 R15: ffffc90002ecf4a0
 smack_socket_sock_rcv_skb+0x123/0x13a0 security/smack/smack_lsm.c:4169
 security_sock_rcv_skb+0x90/0x280 security/security.c:4750
 sk_filter_trim_cap+0x184/0xa80 net/core/filter.c:151
 sk_filter include/linux/filter.h:1062 [inline]
 unix_dgram_sendmsg+0xb15/0x1f80 net/unix/af_unix.c:2061
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmmsg+0x3ab/0x730 net/socket.c:2747
 __do_sys_sendmmsg net/socket.c:2776 [inline]
 __se_sys_sendmmsg net/socket.c:2773 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2773
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f25a317e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f25a3fd8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f25a3335f80 RCX: 00007f25a317e719
RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f25a31f12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f25a3335f80 R15: 00007fff0b61e3e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:llc_conn_state_process+0xc5d/0x12e0
Code: 0f 94 c0 4c 8b 75 00 44 8d 64 00 01 b8 01 00 00 00 bd 07 00 00 00 0f 44 e8 4c 89 f0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df <0f> b6 04 10 84 c0 0f 85 c1 05 00 00 45 89 26 0f b6 04 13 84 c0 0f
RSP: 0018:ffffc90000a18ae8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff1100c92dc02 RCX: ffff888011cb5a00
RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000007 R08: ffffffff89a89271 R09: ffffffff89a89058
R10: 0000000000000005 R11: ffff888011cb5a00 R12: 0000000000000001
R13: ffff88806496e000 R14: 0000000000000000 R15: ffff88806496e012
FS:  00007f25a3fd86c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000060e4e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 94 c0             	sete   %al
   3:	4c 8b 75 00          	mov    0x0(%rbp),%r14
   7:	44 8d 64 00 01       	lea    0x1(%rax,%rax,1),%r12d
   c:	b8 01 00 00 00       	mov    $0x1,%eax
  11:	bd 07 00 00 00       	mov    $0x7,%ebp
  16:	0f 44 e8             	cmove  %eax,%ebp
  19:	4c 89 f0             	mov    %r14,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  27:	fc ff df
* 2a:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 c1 05 00 00    	jne    0x5f7
  36:	45 89 26             	mov    %r12d,(%r14)
  39:	0f b6 04 13          	movzbl (%rbx,%rdx,1),%eax
  3d:	84 c0                	test   %al,%al
  3f:	0f                   	.byte 0xf