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| author | Nick Clifton <nickc@redhat.com> | 2013-02-15 15:53:42 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2013-02-15 15:53:42 +0000 |
| commit | 088f7bb95c7a7c0491039d43970c2ad39ff1d8e1 (patch) | |
| tree | 3076a14d669ed702c0887aa7bd867b5f6f482805 | |
| parent | 214383dd76c20399a8212ec30d98b70b76490af3 (diff) | |
| download | gdb-088f7bb95c7a7c0491039d43970c2ad39ff1d8e1.zip gdb-088f7bb95c7a7c0491039d43970c2ad39ff1d8e1.tar.gz gdb-088f7bb95c7a7c0491039d43970c2ad39ff1d8e1.tar.bz2 | |
Allow for some recursion when scanning archives.
| -rw-r--r-- | bfd/archive.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/bfd/archive.c b/bfd/archive.c index 4b6a81c..7df5c54 100644 --- a/bfd/archive.c +++ b/bfd/archive.c @@ -618,6 +618,7 @@ bfd * _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos) { static file_ptr prev_filepos; + static unsigned int dup_filepos_count = 0; struct areltdata *new_areldata; bfd *n_nfd; char *filename; @@ -625,12 +626,17 @@ _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos) n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos); if (n_nfd) return n_nfd; - /* PR15140: Prevent an inifnite recursion scanning a malformed nested archive. */ + /* PR15140: Prevent an infinite recursion scanning a malformed nested archive. */ if (filepos == prev_filepos) { - bfd_set_error (bfd_error_malformed_archive); - return NULL; + if (++ dup_filepos_count > 100) + { + bfd_set_error (bfd_error_malformed_archive); + return NULL; + } } + else + dup_filepos_count = 0; if (0 > bfd_seek (archive, filepos, SEEK_SET)) return NULL; |