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freebsd-dev/libexec
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Ryan Stone 68faee11e8 rtld: Fix segfault in direct exec mode 
When rtld is directly executed with arguments, it has to move the
program arguments, environment and elf aux data up a few slots to
remove its own arguments before the process being executed sees
them.  When copying the environment, rtld was incorrectly testing
whether the location about to be written to currently contained
NULL, when was supposed to check whether it had just copied the
NULL terminator of the environment string.  This had the result
that the ELF aux data was mostly treated as environment variables,
and rtld would quickly crash when it tried to access required
ELF aux data that it didn't think was present.

Differential Revision:	https://reviews.freebsd.org/D23008
Reviewed by:	kib
MFC after:	1 month
2020-01-07 16:03:11 +00:00
..
atf Another round of attempting to squelch -Wdeprecated-declarations, which 2019-09-17 06:07:08 +00:00
atrun libexec: adoption of SPDX licensing ID tags. 2017-11-27 15:25:02 +00:00
blacklistd-helper DIRDEPS_BUILD: Connect new directories and update dependencies. 2016-06-03 19:25:30 +00:00
bootpd Restore WARNS?=1 here. I missed that libexec/bootpd/bootpgw existed. 2019-07-19 18:47:13 +00:00
comsat General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
dma Replace send-mail with the more standarized sendmail, we do not create 2017-12-27 06:23:50 +00:00
fingerd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
flua flua: newer GCC complains about format-nonliteral at WARNS=2 2019-11-19 00:02:56 +00:00
ftpd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
getty Simplify code with strlcpy/strlcat. 2019-12-01 08:04:22 +00:00
hyperv hyperv: Add VF bringup scripts and devd rules. 2017-07-31 07:18:15 +00:00
mail.local DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
makewhatis.local makewhatis: do not try to operate on read-only mounted directories 2018-10-27 17:15:58 +00:00
mknetid General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
pppoed libexec: adoption of SPDX licensing ID tags. 2017-11-27 15:25:02 +00:00
rbootd General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
rc rc.shutdown: kill shutdown process after logging message 2019-12-07 00:33:08 +00:00
revnetgroup General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
rpc.rquotad This exposes ZFS user and group quotas via the normal 2018-07-05 22:56:13 +00:00
rpc.rstatd General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
rpc.rusersd General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
rpc.rwalld libexec: adoption of SPDX licensing ID tags. 2017-11-27 15:25:02 +00:00
rpc.sprayd rpc.sprayd: raise WARNS to 6 2018-03-05 16:11:07 +00:00
rtld-aout libexec: adoption of SPDX licensing ID tags. 2017-11-27 15:25:02 +00:00
rtld-elf rtld: Fix segfault in direct exec mode 2020-01-07 16:03:11 +00:00
rtld-elf32 libcompat: Correct rtld MLINKS 2019-11-12 22:31:59 +00:00
save-entropy Reduce disk write load in /usr/libexec/save-entropy. 2019-11-30 20:06:53 +00:00
smrsh DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
talkd Regularize my copyright notice 2019-12-04 16:56:11 +00:00
tcpd DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
telnetd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
tests Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed 2016-05-04 23:20:53 +00:00
tftp-proxy DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
tftpd Update Makefile.depend files 2019-12-11 17:37:53 +00:00
ulog-helper libexec: adoption of SPDX licensing ID tags. 2017-11-27 15:25:02 +00:00
ypxfr spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
Makefile Add flua to the base system, install to /usr/libexec 2019-11-18 23:21:13 +00:00
Makefile.amd64 HYPERV isn't available on all architectures, but just on by default 2014-10-16 00:33:06 +00:00
Makefile.i386 HYPERV isn't available on all architectures, but just on by default 2014-10-16 00:33:06 +00:00
Makefile.inc