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Fix potential problem with out-of-scope buffer

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Ulrich Drepper 2011-05-14 11:13:31 -04:00
parent ca408c157c
commit da3c19ef5a
3 changed files with 9 additions and 5 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2011-05-14 Ulrich Drepper <drepper@gmail.com>
[BZ #12626]
* sysdeps/generic/elf/backtracesymsfd.c (__backtrace_symbols_fd): Move
buf2 definition.
* libio/fileops.c (_IO_new_file_close_it): Initialize write_status.
[BZ #12432]

6
NEWS
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@ -12,9 +12,9 @@ Version 2.14
386, 11257, 11258, 11487, 11532, 11578, 11653, 11668, 11724, 11945, 11947,
12052, 12158, 12178, 12200, 12346, 12393, 12420, 12432, 12445, 12449,
12454, 12460, 12469, 12489, 12509, 12510, 12511, 12518, 12527, 12541,
12545, 12551, 12583, 12587, 12597, 12611, 12625, 12631, 12650, 12653,
12655, 12660, 12681, 12685, 12711, 12713, 12714, 12717, 12723, 12724,
12734, 12738
12545, 12551, 12583, 12587, 12597, 12611, 12625, 12626, 12631, 12650,
12653, 12655, 12660, 12681, 12685, 12711, 12713, 12714, 12717, 12723,
12724, 12734, 12738
* The RPC implementation in libc is obsoleted. Old programs keep working
but new programs cannot be linked with the routines in libc anymore.

4
sysdeps/generic/elf/backtracesymsfd.c
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@ -1,5 +1,5 @@
/* Write formatted list with names for addresses in backtrace to a file.
Copyright (C) 1998,2000,2003,2005,2009 Free Software Foundation, Inc.
Copyright (C) 1998,2000,2003,2005,2009,2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@ -45,6 +45,7 @@ __backtrace_symbols_fd (array, size, fd)
for (cnt = 0; cnt < size; ++cnt)
{
char buf[WORD_WIDTH];
char buf2[WORD_WIDTH];
Dl_info info;
struct link_map *map;
size_t last = 0;
@ -59,7 +60,6 @@ __backtrace_symbols_fd (array, size, fd)
if (info.dli_sname != NULL || map->l_addr != 0)
{
char buf2[WORD_WIDTH];
size_t diff;
iov[last].iov_base = (void *) "(";