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6bd0e4efcc
__vsyslog_internal did not handle a case where printing a SYSLOG_HEADER containing a long program name failed to update the required buffer size, leading to the allocation and overflow of a too-small buffer on the heap. This commit fixes that. It also adds a new regression test that uses glibc.malloc.check. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
364 lines
7.7 KiB
Makefile
364 lines
7.7 KiB
Makefile
# Copyright (C) 1991-2024 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <https://www.gnu.org/licenses/>.
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#
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# Sub-makefile for misc portion of the library.
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#
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subdir := misc
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include ../Makeconfig
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headers := \
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sys/uio.h \
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bits/uio-ext.h \
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bits/uio_lim.h \
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sys/ioctl.h \
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bits/ioctls.h \
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bits/ioctl-types.h \
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sys/ptrace.h \
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sys/file.h \
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sys/dir.h \
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sys/cdefs.h \
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ar.h \
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a.out.h \
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libgen.h \
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stab.h \
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bits/stab.def \
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sgtty.h \
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ttyent.h \
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paths.h \
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sys/reboot.h \
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sys/mman.h \
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sys/param.h \
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bits/param.h \
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fstab.h \
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mntent.h \
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search.h \
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err.h \
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error.h \
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sys/queue.h \
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sysexits.h \
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syscall.h \
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sys/syscall.h \
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sys/swap.h \
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sys/select.h \
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sys/sysinfo.h \
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regexp.h \
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bits/select.h \
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bits/mman.h \
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sys/xattr.h \
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syslog.h \
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sys/syslog.h \
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bits/syslog-decl.h \
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bits/syslog.h \
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bits/syslog-ldbl.h \
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bits/syslog-path.h \
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bits/error.h \
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bits/select-decl.h \
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bits/select2.h \
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bits/hwcap.h \
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sys/auxv.h \
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sys/sysmacros.h \
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bits/sysmacros.h \
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bits/types/struct_iovec.h \
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bits/err-ldbl.h \
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bits/error-ldbl.h \
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sys/single_threaded.h \
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# headers
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routines := \
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acct \
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allocate_once \
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atomic_wide_counter \
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brk \
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chflags \
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chroot \
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daemon \
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dirname \
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efgcvt \
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efgcvt_r \
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err \
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error \
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fchflags \
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fd_to_filename \
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fdatasync \
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fgetxattr \
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flistxattr \
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fremovexattr \
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fsetxattr \
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fstab \
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fsync \
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ftruncate \
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ftruncate64 \
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futimes \
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futimesat \
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getauxval \
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getclktck \
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getdomain \
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getdtsz \
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gethostid \
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gethostname \
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getloadavg \
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getpagesize \
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getpass \
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getsysstats \
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getttyent \
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getusershell \
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getxattr \
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gtty \
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hsearch \
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hsearch_r \
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ifunc-impl-list \
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insremque \
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ioctl \
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lgetxattr \
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listxattr \
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llistxattr \
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lremovexattr \
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lsearch \
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lsetxattr \
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lutimes \
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madvise \
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makedev \
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mincore \
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mkdtemp \
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mkostemp \
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mkostemp64 \
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mkostemps \
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mkostemps64 \
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mkstemp \
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mkstemp64 \
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mkstemps \
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mkstemps64 \
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mktemp \
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mlock \
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mlockall \
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mmap \
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mmap64 \
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mntent \
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mntent_r \
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mprotect \
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msync \
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munlock \
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munlockall \
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munmap \
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preadv \
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preadv2 \
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preadv64 \
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preadv64v2 \
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pselect \
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ptrace \
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pwritev \
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pwritev2 \
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pwritev64 \
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pwritev64v2 \
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qefgcvt \
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qefgcvt_r \
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readv \
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reboot \
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regexp \
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remap_file_pages \
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removexattr \
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revoke \
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sbrk \
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select \
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setdomain \
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setegid \
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seteuid \
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sethostid \
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sethostname \
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setregid \
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setreuid \
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setxattr \
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single_threaded \
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sstk \
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stty \
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swapoff \
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swapon \
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sync \
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syncfs \
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syscall \
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syslog \
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truncate \
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truncate64 \
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tsearch \
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ttyslot \
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ualarm \
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unwind-link \
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usleep \
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ustat \
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utimes \
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vhangup \
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writev \
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# routines
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# Exclude fortified routines from being built with _FORTIFY_SOURCE
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routines_no_fortify += \
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getdomain \
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gethostname \
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syslog \
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# routines_no_fortify
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generated += \
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tst-allocate_once-mem.out \
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tst-allocate_once.mtrace \
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tst-error1-mem.out \
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tst-error1.mtrace \
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# generated
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aux := init-misc
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install-lib := libg.a
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gpl2lgpl := \
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error.c \
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error.h \
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# gpl2lgpl
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tests := \
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bug-hsearch1 \
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bug18240 \
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tst-dbl-efgcvt \
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tst-dirname \
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tst-empty \
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tst-error1 \
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tst-fdset \
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tst-hsearch \
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tst-insremque \
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tst-ioctl \
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tst-ldbl-efgcvt \
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tst-ldbl-error \
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tst-ldbl-errorfptr \
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tst-ldbl-warn \
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tst-makedev \
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tst-mntent \
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tst-mntent-autofs \
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tst-mntent-blank-corrupt \
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tst-mntent-blank-passno \
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tst-mntent-escape \
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tst-mntent2 \
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tst-preadvwritev \
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tst-preadvwritev2 \
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tst-preadvwritev64 \
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tst-preadvwritev64v2 \
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tst-pselect \
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tst-select \
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tst-syscalls \
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tst-tsearch \
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tst-warn-wide \
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# tests
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tests-time64 := \
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tst-ioctl-time64 \
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tst-pselect-time64 \
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tst-select-time64 \
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# tests-time64
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# Tests which need libdl.
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ifeq (yes,$(build-shared))
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tests += tst-gethostid
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endif
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tests-internal := \
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tst-allocate_once \
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tst-atomic \
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tst-atomic-long \
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# tests-internal
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tests-static := tst-empty
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# Test for the internal, non-exported __fd_to_filename function.
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tests-internal += tst-fd_to_filename
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tests-static += tst-fd_to_filename
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-error1-mem.out \
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$(objpfx)tst-allocate_once-mem.out
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endif
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tests-container := \
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tst-syslog \
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tst-syslog-long-progname \
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# tests-container
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CFLAGS-select.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-tsearch.c += $(uses-callbacks)
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CFLAGS-lsearch.c += $(uses-callbacks)
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CFLAGS-pselect.c += -fexceptions
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CFLAGS-readv.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-writev.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-preadv.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-preadv64.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pwritev.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pwritev64.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-preadv2.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-preadv64v2.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pwritev2.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-pwritev64v2.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-usleep.c += -fexceptions
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CFLAGS-syslog.c += -fexceptions
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CFLAGS-error.c += -fexceptions
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CFLAGS-getpass.c += -fexceptions
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CFLAGS-mkstemp.c += -fexceptions
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CFLAGS-mkstemp64.c += -fexceptions
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CFLAGS-getsysstats.c += -fexceptions
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CFLAGS-getusershell.c += -fexceptions
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CFLAGS-err.c += -fexceptions
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CFLAGS-tst-tsearch.c += $(stack-align-test-flags)
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CFLAGS-msync.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-fdatasync.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-fsync.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-makedev.c += $(config-cflags-wno-ignored-attributes)
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CFLAGS-mmap64.c += $(config-cflags-wno-ignored-attributes)
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# Called during static library initialization, so turn stack-protection
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# off for non-shared builds.
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CFLAGS-sbrk.o = $(no-stack-protector)
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CFLAGS-sbrk.op = $(no-stack-protector)
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CFLAGS-brk.o = $(no-stack-protector)
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CFLAGS-brk.op = $(no-stack-protector)
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CFLAGS-mmap.o = $(no-stack-protector)
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CFLAGS-mmap.op = $(no-stack-protector)
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CFLAGS-mmap64.o = $(no-stack-protector)
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CFLAGS-mmap64.op = $(no-stack-protector)
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include ../Rules
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$(objpfx)libg.a: $(dep-dummy-lib); $(make-dummy-lib)
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$(objpfx)tst-tsearch: $(libm)
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tst-error1-ENV = MALLOC_TRACE=$(objpfx)tst-error1.mtrace \
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LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
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tst-error1-ARGS = $(objpfx)tst-error1.out
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$(objpfx)tst-error1-mem.out: $(objpfx)tst-error1.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-error1.mtrace > $@; \
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$(evaluate-test)
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tst-allocate_once-ENV = MALLOC_TRACE=$(objpfx)tst-allocate_once.mtrace \
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LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
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$(objpfx)tst-allocate_once-mem.out: $(objpfx)tst-allocate_once.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-allocate_once.mtrace > $@; \
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$(evaluate-test)
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tst-syslog-long-progname-ENV = GLIBC_TUNABLES=glibc.malloc.check=3 \
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LD_PRELOAD=libc_malloc_debug.so.0
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$(objpfx)tst-select: $(librt)
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$(objpfx)tst-select-time64: $(librt)
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$(objpfx)tst-pselect: $(librt)
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$(objpfx)tst-pselect-time64: $(librt)
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