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sys_net: Fix sys_net_bnet_bind page faults

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+ EINVAL checks
This commit is contained in:
Eladash 2020-04-12 19:21:51 +03:00 committed by Ani
parent 492a80f6c5
commit b45d836b89
1 changed files with 24 additions and 7 deletions
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31
rpcs3/Emu/Cell/lv2/sys_net.cpp
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@ -504,14 +504,24 @@ error_code sys_net_bnet_bind(ppu_thread& ppu, s32 s, vm::cptr<sys_net_sockaddr>
sys_net.warning("sys_net_bnet_bind(s=%d, addr=*0x%x, addrlen=%u)", s, addr, addrlen);
// 0 presumably defaults to AF_INET(to check?)
if (addr->sa_family != SYS_NET_AF_INET && addr->sa_family != 0)
if (!addr || addrlen < addr.size())
{
sys_net.error("sys_net_bnet_bind(s=%d): unsupported sa_family (%d)", s, addr->sa_family);
return -SYS_NET_EAFNOSUPPORT;
return -SYS_NET_EINVAL;
}
const auto psa_in = vm::_ptr<const sys_net_sockaddr_in>(addr.addr());
alignas(16) char addr_buf[sizeof(sys_net_sockaddr)];
if (idm::check<lv2_socket>(s))
{
std::memcpy(addr_buf, addr.get_ptr(), addr.size());
}
else
{
return -SYS_NET_EBADF;
}
const auto psa_in = reinterpret_cast<sys_net_sockaddr_in*>(addr_buf);
const auto _addr = reinterpret_cast<sys_net_sockaddr*>(addr_buf);
::sockaddr_in name{};
name.sin_family = AF_INET;
@ -521,10 +531,17 @@ error_code sys_net_bnet_bind(ppu_thread& ppu, s32 s, vm::cptr<sys_net_sockaddr>
const auto sock = idm::check<lv2_socket>(s, [&](lv2_socket& sock) -> sys_net_error
{
// 0 presumably defaults to AF_INET(to check?)
if (_addr->sa_family != SYS_NET_AF_INET && _addr->sa_family != 0)
{
sys_net.error("sys_net_bnet_bind(s=%d): unsupported sa_family (%d)", s, addr->sa_family);
return SYS_NET_EAFNOSUPPORT;
}
if (sock.type == SYS_NET_SOCK_DGRAM_P2P)
{
const u16 daport = reinterpret_cast<const sys_net_sockaddr_in*>(addr.get_ptr())->sin_port;
const u16 davport = reinterpret_cast<const sys_net_sockaddr_in_p2p*>(addr.get_ptr())->sin_vport;
const u16 daport = reinterpret_cast<const sys_net_sockaddr_in*>(addr_buf)->sin_port;
const u16 davport = reinterpret_cast<const sys_net_sockaddr_in_p2p*>(addr_buf)->sin_vport;
sys_net.warning("Trying to bind %s:%d:%d", name.sin_addr, daport, davport);
name.sin_port = std::bit_cast<u16, be_t<u16>>(daport + davport); // htons(daport + davport)
}