Oops: general protection fault, probably for non-canonical address 0xdffffc0000000198: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000cc0-0x0000000000000cc7]
CPU: 0 UID: 0 PID: 7264 Comm: syz.0.233 Not tainted 6.15.0-rc1-syzkaller-00065-g3b07108ada81 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:netdev_need_ops_lock include/net/netdev_lock.h:30 [inline]
RIP: 0010:netdev_lock_ops include/net/netdev_lock.h:41 [inline]
RIP: 0010:addrconf_add_ifaddr+0x184/0x460 net/ipv6/addrconf.c:3157
Code: 8b b4 24 94 00 00 00 4c 89 ef e8 f7 ba 2c ff 4c 8d b0 c5 0c 00 00 48 89 c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 3c 02 00 00
RSP: 0018:ffffc9000dcb7a80 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c402000
RDX: 0000000000000198 RSI: ffffffff8945f432 RDI: ffff88804d032338
RBP: ffffc9000dcb7b90 R08: 0000000000000000 R09: fffffbfff210ce62
R10: ffffc9000dcb7a80 R11: 0000000000000000 R12: 1ffff92001b96f50
R13: ffff88804d032000 R14: 0000000000000cc5 R15: ffff88806cdf8000
FS:  0000000000000000(0000) GS:ffff8880977b9000(0063) knlGS:00000000f50d6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000c39e345 CR3: 000000006dd7a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inet6_ioctl+0x103/0x2b0 net/ipv6/af_inet6.c:580
 sock_do_ioctl+0x115/0x280 net/socket.c:1190
 compat_sock_ioctl_trans net/socket.c:3481 [inline]
 compat_sock_ioctl+0x301/0x7c0 net/socket.c:3507
 __do_compat_sys_ioctl+0x1cb/0x2c0 fs/ioctl.c:1004
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fb8579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f50d655c EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000008916
RDX: 0000000080000140 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:netdev_need_ops_lock include/net/netdev_lock.h:30 [inline]
RIP: 0010:netdev_lock_ops include/net/netdev_lock.h:41 [inline]
RIP: 0010:addrconf_add_ifaddr+0x184/0x460 net/ipv6/addrconf.c:3157
Code: 8b b4 24 94 00 00 00 4c 89 ef e8 f7 ba 2c ff 4c 8d b0 c5 0c 00 00 48 89 c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 3c 02 00 00
RSP: 0018:ffffc9000dcb7a80 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c402000
RDX: 0000000000000198 RSI: ffffffff8945f432 RDI: ffff88804d032338
RBP: ffffc9000dcb7b90 R08: 0000000000000000 R09: fffffbfff210ce62
R10: ffffc9000dcb7a80 R11: 0000000000000000 R12: 1ffff92001b96f50
R13: ffff88804d032000 R14: 0000000000000cc5 R15: ffff88806cdf8000
FS:  0000000000000000(0000) GS:ffff8880978b9000(0063) knlGS:00000000f50d6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f50d5528 CR3: 000000006dd7a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8b b4 24 94 00 00 00 	mov    0x94(%rsp),%esi
   7:	4c 89 ef             	mov    %r13,%rdi
   a:	e8 f7 ba 2c ff       	call   0xff2cbb06
   f:	4c 8d b0 c5 0c 00 00 	lea    0xcc5(%rax),%r14
  16:	48 89 c3             	mov    %rax,%rbx
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 f2             	mov    %r14,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	4c 89 f2             	mov    %r14,%rdx
  31:	83 e2 07             	and    $0x7,%edx
  34:	38 d0                	cmp    %dl,%al
  36:	7f 08                	jg     0x40
  38:	84 c0                	test   %al,%al
  3a:	0f 85 3c 02 00 00    	jne    0x27c