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a289ea09ea
glibc/sysdeps/posix
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Florian Weimer a289ea09ea Do not print backtraces on fatal glibc errors 
If the process is in a bad state, we used to print backtraces in
many cases.  This is problematic because doing so could involve
a lot of work, like loading libgcc_s using the dynamic linker,
and this could itself be targeted by exploit writers.  For example,
if the crashing process was forked from a long-lived process, the
addresses in the error message could be used to bypass ASLR.

Commit ed421fca42 ("Avoid backtrace from
__stack_chk_fail [BZ #12189]"), backtraces where no longer printed
because backtrace_and_maps was always called with do_abort == 1.

Rather than fixing this logic error, this change removes the backtrace
functionality from the sources.  With the prevalence of external crash
handlers, it does not appear to be particularly useful.  The crash
handler may also destroy useful information for debugging.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2019-08-19 15:41:29 +02:00
..
alarm.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
clock_getres.c nptl: Remove pthread_clock_gettime pthread_clock_settime 2019-03-22 15:37:43 -03:00
clock.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
closedir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ctermid.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
cuserid.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dirfd.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dirstream.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-fileid.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dup2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dup.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
euidaccess.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
fdopendir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
flock.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
fpathconf.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gai_strerror-strs.h
gai_strerror.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
getaddrinfo.c nss: Turn __nss_database_lookup into a compatibility symbol 2019-05-15 15:07:49 +02:00
getcwd.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
getdtsz.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gethostname.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
getpagesize.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
isatty.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
isfdtype.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
killpg.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
libc_fatal.c Do not print backtraces on fatal glibc errors 2019-08-19 15:41:29 +02:00
Makefile NPTL: Refactor named semaphore code to use shm-directory.h 2014-12-12 15:01:30 -08:00
mkfifo.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
mkfifoat.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
nice.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
open64.c nptl: Cleanup cancellation macros 2019-01-03 18:38:16 -02:00
opendir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pathconf.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pause.c nptl: Remove tst-cancel-wrappers test and related macros 2019-01-03 18:38:08 -02:00
posix_fallocate64.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
posix_fallocate.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pread64.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pread.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preadv2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preadv64.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preadv64v2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preadv_common.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preadv.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
profil.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwrite64.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwrite.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwritev2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwritev64.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwritev64v2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwritev_common.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pwritev.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
raise.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
readdir_r.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
readdir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
readv.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
remove.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
rename.c Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
rewinddir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
seekdir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shm_open.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shm_unlink.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shm-directory.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shm-directory.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigblock.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigignore.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigintr.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
signal.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigpause.c nptl: Remove tst-cancel-wrappers test and related macros 2019-01-03 18:38:08 -02:00
sigset.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigsetmask.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigsuspend.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigwait.c nptl: Cleanup cancellation macros 2019-01-03 18:38:16 -02:00
sleep.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
spawni.c Add some spaces before '('. 2019-02-27 13:55:45 +00:00
sprofil.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Subdirs Make sysdeps/posix bring in login subdir. 2015-07-23 17:04:22 -07:00
sysconf.c Remove obsolete, never-implemented XSI STREAMS declarations 2019-03-14 15:44:15 +01:00
system.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sysv_signal.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
telldir.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tempname.c Get new entropy on each attempt __gen_tempname (BZ #15813) 2019-08-01 08:09:08 -03:00
time.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timespec_get.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
truncate.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ttyname_r.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ttyname.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ulimit.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
usleep.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
utime.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
utimes.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wait3.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wait.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
waitid.c nptl: Cleanup cancellation macros 2019-01-03 18:38:16 -02:00
writev.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00