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db3476aff1
glibc/libio
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Florian Weimer db3476aff1 libio: Implement vtable verification [BZ #20191] 
This commit puts all libio vtables in a dedicated, read-only ELF
section, so that they are consecutive in memory.  Before any indirect
jump, the vtable pointer is checked against the section boundaries,
and the process is terminated if the vtable pointer does not fall into
the special ELF section.

To enable backwards compatibility, a special flag variable
(_IO_accept_foreign_vtables), protected by the pointer guard, avoids
process termination if libio stream object constructor functions have
been called earlier.  Such constructor functions are called by the GCC
2.95 libstdc++ library, and this mechanism ensures compatibility with
old binaries.  Existing callers inside glibc of these functions are
adjusted to call the original functions, not the wrappers which enable
vtable compatiblity.

The compatibility mechanism is used to enable passing FILE * objects
across a static dlopen boundary, too.
2016-06-23 20:01:52 +02:00
..
bits Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fbufsize.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__flbf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fpending.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fpurge.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__freadable.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__freading.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fsetlocking.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fwritable.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__fwriting.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bug-fopena+.c
bug-fseek.c
bug-ftell.c
bug-memstream1.c [BZ #1996] 2006-08-14 22:16:14 +00:00
bug-mmap-fflush.c
bug-rewind2.c Fix warnings in fwscanf / rewind tests. 2014-11-26 12:54:39 +00:00
bug-rewind.c Fix warnings in fwscanf / rewind tests. 2014-11-26 12:54:39 +00:00
bug-ungetc2.c
bug-ungetc3.c Update. 2004-11-09 07:05:27 +00:00
bug-ungetc4.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bug-ungetc.c
bug-ungetwc1.c Fix libio/bug-ungetwc1.c warning. 2014-11-27 16:01:04 +00:00
bug-ungetwc2.c
bug-wfflush.c
bug-wmemstream1.c * posix/glob.c (glob_in_dir): Add some comments and asserts to 2006-09-30 15:09:35 +00:00
bug-wsetpos.c Fix fsetpos on wide stream. 2009-09-02 19:45:33 -07:00
clearerr_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
clearerr.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Depend
fcloseall.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
feof_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
feof.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ferror_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ferror.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
filedoalloc.c libio: Clean up _IO_file_doallocate and _IO_wfile_doallocate 2016-03-07 17:05:06 +01:00
fileno.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fileops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
fmemopen.c libio: Fix fmemopen append mode failure (BZ# 20012) 2016-04-29 19:25:17 -03:00
fputc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fputc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fputwc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fputwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
freopen64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
freopen.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fseek.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fseeko64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fseeko.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ftello64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ftello.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fwide.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fwprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fwscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
genops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
getc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getchar_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getchar.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getwc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getwchar_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getwchar.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofclose.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofdopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
iofflush_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofflush.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgetpos64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgetpos.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgets_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgets.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgetws_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofgetws.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofopen64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
iofopncook.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
iofputs_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofputs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofputws_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofputws.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofread_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofread.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofsetpos64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofsetpos.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ioftell.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofwide.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofwrite_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iofwrite.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iogetdelim.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iogetline.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iogets.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iogetwline.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iolibio.h Remove use of INTDEF/INTUSE in libio 2012-05-24 23:06:20 +02:00
iopadn.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iopopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
ioputs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ioseekoff.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ioseekpos.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iosetbuffer.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iosetvbuf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ioungetc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ioungetwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iovdprintf.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
iovsprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iovsscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iovswscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
iowpadn.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc_fatal.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libio.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libioP.h libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
Makefile libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
memstream.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
obprintf.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
oldfileops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
oldfmemopen.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiofclose.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiofdopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
oldiofgetpos64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiofgetpos.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiofopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
oldiofsetpos64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiofsetpos.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldiopopen.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
oldpclose.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldstdfiles.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldtmpfile.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pclose.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
peekc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putchar_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putchar.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putwc_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putwchar_u.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putwchar.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rewind.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setbuf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setlinebuf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stdfiles.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stdio.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stdio.h Fix stdio.h namespace for pre-threads POSIX (bug 20014). 2016-04-28 22:01:04 +00:00
strfile.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
swprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
swscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
test-fmemopen.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
test-freopen.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
test-freopen.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
tst_getwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst_getwc.input
tst_putwc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst_swprintf.c
tst_swscanf.c
tst_wprintf2.c Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
tst_wprintf.c
tst_wscanf.c
tst_wscanf.input
tst-atime.c Fix libio/tst-atime not to presume ST_NOATIME exists. 2015-02-06 12:24:16 -08:00
tst-eof.c
tst-ext2.c * libio/Makefile (tests): Add tst-ext2. 2007-10-13 07:33:09 +00:00
tst-ext.c
tst-fgetwc.c (do_test): Use de_DE.UTF-8 as locale name. 2009-06-15 17:27:48 -07:00
tst-fgetwc.input 2009-02-04 Ulrich Drepper <drepper@redhat.com> 2009-02-04 21:27:48 +00:00
tst-fgetws.c
tst-fopenloc2.c [BZ #2173] 2006-01-19 01:35:28 +00:00
tst-fopenloc.c 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
tst-fputws.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-freopen.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-fseek.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-ftell-active-handler.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-ftell-append.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-ftell-partial-wide.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-fwrite-error.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-memstream1.c * libio/wmemstream.c: New file. 2006-01-12 02:03:42 +00:00
tst-memstream2.c Adjust timeouts for some tests, to accommodate slow processors, 2015-02-22 01:05:02 -08:00
tst-mmap2-eofsync.c 2016-06-11 Paul Pluzhnikov <ppluzhnikov@google.com> 2016-06-11 14:50:16 -07:00
tst-mmap-eofsync.c
tst-mmap-fflushsync.c
tst-mmap-offend.c
tst-mmap-setvbuf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-popen1.c * sysdeps/unix/sysv/linux/syscalls.list: Add __pipe2 alias. 2008-07-27 18:26:13 +00:00
tst-setvbuf1.c [BZ #2337] 2006-12-13 23:17:54 +00:00
tst-sscanf.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-swscanf.c
tst-ungetwc1.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-ungetwc2.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-widetext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-widetext.input Rename Oriya locale to Odia (bug 15601) 2013-11-20 17:47:41 +05:30
tst-wmemstream1.c * posix/glob.c (glob_in_dir): Add some comments and asserts to 2006-09-30 15:09:35 +00:00
tst-wmemstream2.c * posix/glob.c (glob_in_dir): Add some comments and asserts to 2006-09-30 15:09:35 +00:00
vasprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Versions libio: fmemopen rewrite to POSIX compliance 2015-07-08 12:07:21 -03:00
vscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
vsnprintf.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
vswprintf.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
vtables.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
vwprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
vwscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wfiledoalloc.c libio: Clean up _IO_file_doallocate and _IO_wfile_doallocate 2016-03-07 17:05:06 +01:00
wfileops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
wgenops.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wmemstream.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
wprintf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wscanf.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wstrops.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00