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| author | Nick Clifton <nickc@redhat.com> | 2016-12-05 13:11:01 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2016-12-05 13:11:01 +0000 |
| commit | 88add6d8e794073758b5398c52bbb76ab40a2923 (patch) | |
| tree | 3e65c30add5d29ea1f07dd1d981027982a7228b6 /binutils/objcopy.c | |
| parent | daae68f4f372e0618d6b9c64ec0f1f74eae6ab3d (diff) | |
| download | gdb-88add6d8e794073758b5398c52bbb76ab40a2923.zip gdb-88add6d8e794073758b5398c52bbb76ab40a2923.tar.gz gdb-88add6d8e794073758b5398c52bbb76ab40a2923.tar.bz2 | |
Fix seg-fault running strip on a corrupt binary.
PR ld/20923
* objcopy.c (mark_symbols_used_in_relocations): Check for a null
symbol pointer before attempting to mark the symbol as kept.
Diffstat (limited to 'binutils/objcopy.c')
| -rw-r--r-- | binutils/objcopy.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/binutils/objcopy.c b/binutils/objcopy.c index 4910fcf..6a398ce 100644 --- a/binutils/objcopy.c +++ b/binutils/objcopy.c @@ -3551,7 +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++) { - if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol + /* See PR 20923 for a reproducer for the NULL test. */ + if (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) (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; |