glibc/socket/Makefile
Arjun Shankar 9c443ac455 socket: Check lengths before advancing pointer in CMSG_NXTHDR
The inline and library functions that the CMSG_NXTHDR macro may expand
to increment the pointer to the header before checking the stride of
the increment against available space.  Since C only allows incrementing
pointers to one past the end of an array, the increment must be done
after a length check.  This commit fixes that and includes a regression
test for CMSG_FIRSTHDR and CMSG_NXTHDR.

The Linux, Hurd, and generic headers are all changed.

Tested on Linux on armv7hl, i686, x86_64, aarch64, ppc64le, and s390x.

[BZ #28846]

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2022-08-02 11:10:25 +02:00

60 lines
1.9 KiB
Makefile

# Copyright (C) 1991-2022 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
#
# Sub-makefile for socket portion of the library.
#
subdir := socket
include ../Makeconfig
headers := sys/socket.h sys/un.h bits/sockaddr.h bits/socket.h \
bits/socket2.h bits/types/struct_osockaddr.h \
sys/socketvar.h net/if.h
routines := accept bind connect getpeername getsockname getsockopt \
listen recv recvfrom recvmsg send sendmsg sendto \
setsockopt shutdown socket socketpair isfdtype opensock \
sockatmark accept4 recvmmsg sendmmsg sockaddr_un_set
tests := \
tst-accept4 \
tst-sockopt \
tst-cmsghdr \
# tests
tests-internal := \
tst-sockaddr_un_set \
# tests-internal
tests-time64 := \
tst-sockopt-time64 \
# tests
aux := sa_len
include ../Rules
CFLAGS-recv.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-recvfrom.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendto.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-recvmsg.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendmsg.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-send.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-connect.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-accept.c += -fexceptions -fasynchronous-unwind-tables