glibc/stdlib
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
sys
a64l.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
abort.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
abs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
add_n.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
addmul_1.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
alloca.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
at_quick_exit.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atexit.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atof.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atoi.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atol.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atoll.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bsearch.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bug-fmtmsg1.c Fix locking problem in fmtmsg 2012-01-16 09:03:20 -05:00
bug-getcontext.c Fix bug-getcontext test 2012-07-16 18:46:40 +02:00
bug-strtod2.c Refactor bug-strtod2.c to be type generic 2016-05-23 14:13:11 -05:00
bug-strtod.c Refactor bug-strtod.c to better test new types. 2016-05-23 14:13:11 -05:00
canonicalize.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
cmp.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
cxa_at_quick_exit.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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cxa_finalize.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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dbl2mpn.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Depend
div.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
divmod_1.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
divrem.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
drand48_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
drand48-iter.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
drand48.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
erand48_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
erand48.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
errno.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
exit.c Bug 20198: quick_exit should not call destructors. 2016-06-06 21:40:25 -04:00
exit.h Bug 20198: quick_exit should not call destructors. 2016-06-06 21:40:25 -04:00
fmtmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fmtmsg.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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gen-fpioconst.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gen-tst-strtod-round.c Refactor tst-strtod-round.c for type-generic-ness 2016-05-25 13:33:36 -05:00
getcontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getenv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getsubopt.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gmp-impl.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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grouping.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
grouping.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
groupingwc.c
inlines.c
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jrand48_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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labs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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ldbl2mpn.c
ldiv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
llabs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lldiv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
longlong.h longlong: fix sh -Wundef builds 2016-01-07 17:29:17 -05:00
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lrand48.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lshift.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
makecontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile Bug 20198: quick_exit should not call destructors. 2016-06-06 21:40:25 -04:00
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mbtowc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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monetary.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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mpn2ldbl.c
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old_atexit.c
on_exit.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putenv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
qsort.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
quick_exit.c Bug 20198: quick_exit should not call destructors. 2016-06-06 21:40:25 -04:00
rand_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rand.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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random.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rpmatch.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rshift.c Fix build failures with -DDEBUG. 2016-01-15 11:07:41 -07:00
secure-getenv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
seed48_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
seed48.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setcontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setenv.c Suppress GCC 6 warning about ambiguous 'else' with -Wparentheses 2016-04-15 13:30:55 +02:00
srand48_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
srand48.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stdlib.h Do not declare grantpt, ptsname, unlockpt in stdlib.h for XPG3 (bug 20094). 2016-05-17 15:51:55 +00:00
strfmon_l.c libio: Implement vtable verification [BZ #20191] 2016-06-23 20:01:52 +02:00
strfmon.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strtod_l.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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strtoimax.c
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strtoumax.c
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swapcontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
system.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tens_in_limb.c
test-a64l.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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testdiv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
testdiv.input
testmb2.c
testmb.c
testrand.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
testsort.c
tst-atof1.c
tst-atof2.c
tst-bsearch.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-environ.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-fmtmsg.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-fmtmsg.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
tst-limits.c Fix a couple of -Wundef warnings. 2014-12-29 23:14:38 -05:00
tst-makecontext2.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-makecontext3.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-makecontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-putenv.c
tst-putenvmod.c
tst-qsort2.c stdlib/tst-qsort2.c: Fix off-by-one argc interpretation error 2014-06-20 21:29:33 +01:00
tst-qsort.c
tst-quick_exit.cc quick_exit tests: Do not use C++ headers 2016-06-09 12:09:43 +02:00
tst-rand48-2.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-rand48.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-random2.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-random.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-secure-getenv.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-setcontext2.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-setcontext3.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-setcontext3.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
tst-setcontext.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strfmon_l.c strfmon_l: Use specified locale for number formatting [BZ #19633] 2016-04-04 15:18:13 +02:00
tst-strtod2.c
tst-strtod3.c
tst-strtod4.c
tst-strtod5.c
tst-strtod6.c Refactor tst-strtod6.c 2016-05-23 14:13:11 -05:00
tst-strtod-nan-locale-main.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtod-nan-locale.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtod-overflow.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtod-round-data Fix strtof decimal rounding close to half least subnormal (bug 18247). 2015-04-10 20:45:30 +00:00
tst-strtod-round-data.h Refactor tst-strtod-round.c for type-generic-ness 2016-05-25 13:33:36 -05:00
tst-strtod-round.c Refactor tst-strtod-round.c for type-generic-ness 2016-05-25 13:33:36 -05:00
tst-strtod-underflow.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtod.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtod.h Refactor tst-strtod-round.c for type-generic-ness 2016-05-25 13:33:36 -05:00
tst-strtol-locale-main.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtol-locale.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-strtol.c Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
tst-strtoll.c Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
tst-system.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-thread-quick_exit.cc quick_exit tests: Do not use C++ headers 2016-06-09 12:09:43 +02:00
tst-tininess.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-tls-atexit-lib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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tst-unsetenv1.c
tst-xpg-basename.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ucontext.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
udiv_qrnnd.c
Versions Bug 20198: quick_exit should not call destructors. 2016-06-06 21:40:25 -04:00
wcstoimax.c
wcstombs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wcstoumax.c
wctomb.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
xpg_basename.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00