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glibc/stdlib
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Eric Biggers d5b1c5ed8b setenv fix memory leak when setting large, duplicate string (BZ #17658) 
glibc maintains a binary tree of environment strings it malloc()ed
itself.  However, it's possible for it to malloc() a string, then find
that an identical string is already in the tree.  In this case, the
memory is leaked and is not freed if the application later calls
__libc_freeres().  Fix this by freeing 'new_value' when it's unneeded.

Test case:
	#include <stdlib.h>
	#include <string.h>

	int main()
	{
		char *p = calloc(100000, 1);
		memset(p, 'A', 99999);
		setenv("TESTVAR", p, 1);
		setenv("TESTVAR", p, 1);
		free(p);
	}

Leak that was reported by valgrind:
	100,008 bytes in 1 blocks are definitely lost in loss record 1 of 1
	   at 0x4C29F90: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
	   by 0x4E6B3D4: __add_to_environ (setenv.c:176)
	   by 0x4C31B8F: setenv (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
	   by 0x400642: main (in /mnt/tmpfs/a.out)
2015-01-07 12:10:52 +05:30
..
bits Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
sys
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abort.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
abs.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
add_n.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
addmul_1.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
alloca.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
at_quick_exit.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
atexit.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
atof.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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atoll.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
bsearch.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +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
bug-strtod.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
canonicalize.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
cmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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exit.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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fmtmsg.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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getcontext.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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grouping.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
groupingwc.c
inlines.c
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Makefile Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +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. 2015-01-02 16:29:47 +00:00
putenv.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
qsort.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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seed48_r.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
seed48.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
setcontext.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
setenv.c setenv fix memory leak when setting large, duplicate string (BZ #17658) 2015-01-07 12:10:52 +05:30
srand48_r.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
srand48.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stdlib.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strfmon_l.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +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. 2015-01-02 16:29:47 +00:00
system.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tens_in_limb.c
test-a64l.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-canon2.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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testdiv.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
testdiv.input
testmb2.c
testmb.c
testrand.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
testsort.c
tst-atof1.c
tst-atof2.c
tst-bsearch.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-environ.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-fmtmsg.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-fmtmsg.sh Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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. 2015-01-02 16:29:47 +00:00
tst-makecontext3.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-makecontext.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +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-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. 2015-01-02 16:29:47 +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. 2015-01-02 16:29:47 +00:00
tst-setcontext.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strtod2.c
tst-strtod3.c
tst-strtod4.c
tst-strtod5.c
tst-strtod6.c [BZ #15522] strtod ("nan(N)") returning a sNaN in some cases 2013-08-29 12:22:10 +02:00
tst-strtod-overflow.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strtod-round-data Fix strtod rounding of half the least subnormal (bug 16151). 2013-11-13 12:59:54 +00:00
tst-strtod-round.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strtod-underflow.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strtod.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strtol.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-strtoll.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-system.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-tininess.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-tls-atexit-lib.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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tst-unsetenv1.c
tst-xpg-basename.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ucontext.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
udiv_qrnnd.c
Versions C++11 thread_local destructors support 2013-02-18 19:08:21 +05:30
wcstoimax.c
wcstombs.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
wcstoumax.c
wctomb.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
xpg_basename.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00