program:
r0 = socket$netlink(0x10, 0x3, 0x0)
writev(r0, &(0x7f0000000180)=[{&(0x7f0000000240)="390000001300034700bb65e1c3e4ffff01000000010000005600000025000000190004000400000007fd17e5ffff0800040000000000000000", 0x39}], 0x1)
socket$nl_route(0x10, 0x3, 0x0)
r1 = socket(0x11, 0x800000003, 0x0)
bind(r1, &(0x7f0000000100)=@generic={0x11, "0000010000000000080044944eeba71a4976e252922cb18f6e2e2aba000000012e0b3836005404b0e0301a4ce875f2e3ff5f163ee340b7679500800000000000000101013c5811039e15775027ecce66fd792bbf0e5bf5ff1b0816f3f6db1c00010000000000000049740000000000000006ad8e5ecc326d3a09ffc2c654"}, 0x80)
getsockname$packet(r1, &(0x7f0000000740)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f0000000780)=0x14)
r2 = socket(0xa, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./proc\x00', &(0x7f0000000140)='proc\x00', 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./proc/sys/net/ipv6/conf/lo/keep_addr_on_down\x00', 0x2, 0x0)
write(r3, &(0x7f0000000040)='1\n', 0x2)
r4 = socket$inet6(0xa, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r4, 0x8914, &(0x7f00000000c0)={'lo\x00', 0x1})
ioctl$sock_inet6_SIOCSIFADDR(r4, 0x8916, &(0x7f0000000080)={@private0, 0x40, 0x1})
ioctl$sock_inet_SIOCSIFFLAGS(r4, 0x8914, &(0x7f00000000c0)={'lo\x00'})
ioctl(r2, 0x8916, &(0x7f0000000240))
writev(r0, &(0x7f00000001c0)=[{&(0x7f00000000c0)="390000001300034700bb65e1c3e4ffff06000300010000004500000025000000190011000600ad000200000000000006040000000000000000", 0x39}], 0x1)

[   93.439692][   T44] Bluetooth: hci0: command tx timeout
[   93.454608][   T11] cfg80211: failed to load regulatory.db
[   93.680783][ T5314] netlink: 'syz.0.0': attribute type 4 has an invalid length.
[   93.726398][ T5314] netlink: 'syz.0.0': attribute type 17 has an invalid length.
[   93.747357][  T179] IPv6: BUG: Address fc00:: on device lo is missing its host route.