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authorNick Clifton <nickc@redhat.com>2016-12-06 16:26:42 +0000
committerNick Clifton <nickc@redhat.com>2016-12-06 16:26:42 +0000
commit8b929e420a810afe23d5ba57a98109c74d1d5816 (patch)
treeddd34404fc19629ed6edc0d7cd931eeb6adc5c43 /binutils
parent92744f058094edd0b29bf9762f4ac26e4c6743c2 (diff)
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Fix seg-fault running strip on a corrupt binary.
PR binutils/20930 * objcopy.c (mark_symbols_used_in_relocations): Check for a null symbol pointer pointer before attempting to mark the symbol as kept.
Diffstat (limited to 'binutils')
-rw-r--r--binutils/ChangeLog7
-rw-r--r--binutils/objcopy.c3
2 files changed, 9 insertions, 1 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index fdbb056..b3429f7 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,10 @@
+2016-12-06 Nick Clifton <nickc@redhat.com>
+
+ PR binutils/20930
+ * objcopy.c (mark_symbols_used_in_relocations): Check for a null
+ symbol pointer pointer before attempting to mark the symbol as
+ kept.
+
2016-12-05 Jose E. Marchesi <jose.marchesi@oracle.com>
* MAINTAINERS: Add myself as maintainer for the SPARC targets.
diff --git a/binutils/objcopy.c b/binutils/objcopy.c
index 6a398ce..c780012 100644
--- a/binutils/objcopy.c
+++ b/binutils/objcopy.c
@@ -3551,8 +3551,9 @@ mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg)
special bfd section symbols, then mark it with BSF_KEEP. */
for (i = 0; i < relcount; i++)
{
- /* See PR 20923 for a reproducer for the NULL test. */
+ /* See PRs 20923 and 20930 for reproducers for the NULL tests. */
if (relpp[i]->sym_ptr_ptr != NULL
+ && * relpp[i]->sym_ptr_ptr != NULL
&& *relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
&& *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
&& *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)