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Kernel: Oops, recvfrom() is not quite ready for SMAP protections yet

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This commit is contained in:
Andreas Kling 2020-01-11 13:03:44 +01:00
parent eede6cfd06
commit 83f59419cd
1 changed files with 1 additions and 1 deletions
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2
Kernel/Process.cpp
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@ -2936,6 +2936,7 @@ ssize_t Process::sys$recvfrom(const Syscall::SC_recvfrom_params* user_params)
sockaddr* addr = params.addr; sockaddr* addr = params.addr;
socklen_t* addr_length = params.addr_length; socklen_t* addr_length = params.addr_length;
SmapDisabler disabler;
if (!validate(params.buffer)) if (!validate(params.buffer))
return -EFAULT; return -EFAULT;
if (addr_length) { if (addr_length) {
@ -2957,7 +2958,6 @@ ssize_t Process::sys$recvfrom(const Syscall::SC_recvfrom_params* user_params)
if (flags & MSG_DONTWAIT) if (flags & MSG_DONTWAIT)
description->set_blocking(false); description->set_blocking(false);
SmapDisabler disabler;
auto nrecv = socket.recvfrom(*description, params.buffer.data, params.buffer.size, flags, addr, addr_length); auto nrecv = socket.recvfrom(*description, params.buffer.data, params.buffer.size, flags, addr, addr_length);
if (flags & MSG_DONTWAIT) if (flags & MSG_DONTWAIT)
description->set_blocking(original_blocking); description->set_blocking(original_blocking);