Fix use-after-free in dcigettext.c (#816647).
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2012-06-21 Jeff Law <law@redhat.com>
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* intl/dcigettext.c (_nl_find_msg): Do not dereference memory
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that may have just been free'd.
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diff --git a/intl/dcigettext.c b/intl/dcigettext.c
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index f6b7573..9c673d4 100644
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--- a/intl/dcigettext.c
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+++ b/intl/dcigettext.c
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@@ -1149,13 +1149,14 @@ _nl_find_msg (domain_file, domainbinding, msgid, convert, lengthp)
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/* We must allocate a new buffer or resize the old one. */
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if (malloc_count > 0)
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{
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+ struct transmem_list *next = transmem_list->next;
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++malloc_count;
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freemem_size = malloc_count * INITIAL_BLOCK_SIZE;
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newmem = (transmem_block_t *) realloc (transmem_list,
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freemem_size);
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# ifdef _LIBC
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if (newmem != NULL)
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- transmem_list = transmem_list->next;
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+ transmem_list = next;
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else
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{
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struct transmem_list *old = transmem_list;
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@ -28,7 +28,7 @@
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Summary: The GNU libc libraries
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Name: glibc
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Version: %{glibcversion}
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Release: 14%{?dist}
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Release: 15%{?dist}
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# GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
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# Things that are linked directly into dynamically linked programs
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# and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
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@ -174,6 +174,9 @@ Patch2034: %{name}-rh767693-2.patch
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# Upstream BZ 14247
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Patch2036: %{name}-rh827510.patch
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# Upstream BZ 14277
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Patch2037: %{name}-rh816647.patch
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Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
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Obsoletes: glibc-profile < 2.4
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Obsoletes: nss_db
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@ -432,6 +435,7 @@ rm -rf %{glibcportsdir}
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%patch2034 -p1
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%patch0035 -p1
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%patch2036 -p1
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%patch2037 -p1
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# On powerpc32, hp timing is only available in power4/power6
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# libs, not in base, so pre-power4 dynamic linker is incompatible
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@ -1314,6 +1318,9 @@ rm -f *.filelist*
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%endif
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%changelog
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* Thu Jun 21 2012 Jeff Law <law@redhat.com> - 2.15.90-15
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- Fix use-after-free in dcigettext.c (#816647).
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* Fri Jun 15 2012 Jeff Law <law@redhat.com> - 2.15.90-14
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- Resync with master.
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