kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9816 Comm: syz-executor.5 Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:addrconf_f6i_alloc+0x32d/0x4a0 net/ipv6/route.c:4410
Code: 59 bc ff ff 48 85 c0 49 89 c4 74 3d e8 dc 36 32 fb 49 8d bc 24 86 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1f 01 00 00
RSP: 0018:ffff88806adc6c30 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 1ffff1100d5b8d88 RCX: 1ffffffff134b5ce
RDX: 000000000000000f RSI: ffffffff86403e74 RDI: 000000000000007a
RBP: ffff88806adc6db0 R08: ffff88806adbe080 R09: fffffbfff134af90
R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: fffffffffffffff4
R13: ffff8880a92a1b00 R14: ffff8880a0151080 R15: 0000000000000000
FS:  0000555556033940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007111c8 CR3: 000000006adbc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 fixup_permanent_addr net/ipv6/addrconf.c:3424 [inline]
 addrconf_permanent_addr net/ipv6/addrconf.c:3463 [inline]
 addrconf_notify+0x1534/0x23b0 net/ipv6/addrconf.c:3533
 notifier_call_chain+0xc2/0x230 kernel/notifier.c:95
 __raw_notifier_call_chain kernel/notifier.c:396 [inline]
 raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:403
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1749
 call_netdevice_notifiers_extack net/core/dev.c:1761 [inline]
 call_netdevice_notifiers net/core/dev.c:1775 [inline]
 __dev_notify_flags+0x121/0x2c0 net/core/dev.c:7611
 dev_change_flags+0x10d/0x170 net/core/dev.c:7649
 do_setlink+0x9fa/0x3520 net/core/rtnetlink.c:2497
 __rtnl_newlink+0xbd8/0x16c0 net/core/rtnetlink.c:3129
 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3254
 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:5223
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 __sys_sendto+0x262/0x380 net/socket.c:1952
 __do_sys_sendto net/socket.c:1964 [inline]
 __se_sys_sendto net/socket.c:1960 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413733
Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 5d 2b 66 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff
RSP: 002b:00007ffc2f7127e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000413733
RDX: 0000000000000038 RSI: 0000000000a70070 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc2f7127f0 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 0000000000000003 R14: 00007ffc2f712898 R15: 0000000000000006
Modules linked in:
---[ end trace 144fdfeef192f80b ]---
RIP: 0010:addrconf_f6i_alloc+0x32d/0x4a0 net/ipv6/route.c:4410
Code: 59 bc ff ff 48 85 c0 49 89 c4 74 3d e8 dc 36 32 fb 49 8d bc 24 86 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1f 01 00 00
RSP: 0018:ffff88806adc6c30 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 1ffff1100d5b8d88 RCX: 1ffffffff134b5ce
RDX: 000000000000000f RSI: ffffffff86403e74 RDI: 000000000000007a
RBP: ffff88806adc6db0 R08: ffff88806adbe080 R09: fffffbfff134af90
R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: fffffffffffffff4
R13: ffff8880a92a1b00 R14: ffff8880a0151080 R15: 0000000000000000
FS:  0000555556033940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007111c8 CR3: 000000006adbc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600