Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3a1dbf08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7b110006f9
RDX: 0000000020000000 RSI: 000000000000890b RDI: 0000000000000005
RBP: 00007ffd3a1dbf20 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007ffd3a1dbf40 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5011 at net/ipv6/ip6_fib.c:1506 fib6_add+0x3669/0x4080 net/ipv6/ip6_fib.c:1506
Modules linked in:
CPU: 0 PID: 5011 Comm: syz-executor117 Not tainted 6.4.0-syzkaller-01224-g1ef6663a587b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:fib6_add+0x3669/0x4080 net/ipv6/ip6_fib.c:1506
Code: 00 00 48 8b 9b 58 0b 00 00 e9 67 f2 ff ff e8 9e 2c b0 f8 be 02 00 00 00 4c 89 f7 e8 c1 00 40 fb e9 ac e2 ff ff e8 87 2c b0 f8 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 48 48 c1 ea 03 80
RSP: 0018:ffffc9000398f8c8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807dc15940 RSI: ffffffff88d43e69 RDI: ffff888027a1c320
RBP: ffff888027a1c1a0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
R13: 0000000000000000 R14: ffff88802a80642c R15: ffff888076b50000
FS:  000055555558b300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000340 CR3: 000000007ebcb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ip6_ins_rt net/ipv6/route.c:1301 [inline]
 ip6_route_add+0x8f/0x150 net/ipv6/route.c:3839
 ipv6_route_ioctl+0x3fc/0x570 net/ipv6/route.c:4459
 inet6_ioctl+0x246/0x290 net/ipv6/af_inet6.c:569
 sock_do_ioctl+0xcc/0x230 net/socket.c:1202
 sock_ioctl+0x1f8/0x680 net/socket.c:1319
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x19d/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7b110006f9
Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3a1dbf08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7b110006f9
RDX: 0000000020000000 RSI: 000000000000890b RDI: 0000000000000005
RBP: 00007ffd3a1dbf20 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007ffd3a1dbf40 R14: 0000000000000003 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	28 c3                	sub    %al,%bl
   2:	e8 4a 15 00 00       	callq  0x1551
   7:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   e:	00 00 00
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
* 2a:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	retq
  33:	48 c7 c1 c0 ff ff ff 	mov    $0xffffffffffffffc0,%rcx
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W