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| author | Martin Matuska <mm@FreeBSD.org> | 2018-08-14 11:42:32 +0000 |
|---|---|---|
| committer | Martin Matuska <mm@FreeBSD.org> | 2018-08-14 11:42:32 +0000 |
| commit | b6479158e17714e37158f899ca572480f252ea87 (patch) | |
| tree | d5bee9e389b3a82ba39d29de667d3848f9a58280 /contrib/libarchive | |
| parent | 335fe94f907864b647160ab616d8caa91a983287 (diff) | |
| parent | 01ab5f2b03469f9d06f58229fee91d136e45d31f (diff) | |
| download | src-test2-b6479158e17714e37158f899ca572480f252ea87.tar.gz src-test2-b6479158e17714e37158f899ca572480f252ea87.zip | |
Notes
Diffstat (limited to 'contrib/libarchive')
| -rw-r--r-- | contrib/libarchive/libarchive/archive_read_support_format_iso9660.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/contrib/libarchive/libarchive/archive_read_support_format_iso9660.c b/contrib/libarchive/libarchive/archive_read_support_format_iso9660.c index 36549a38f116..5adf627cf54a 100644 --- a/contrib/libarchive/libarchive/archive_read_support_format_iso9660.c +++ b/contrib/libarchive/libarchive/archive_read_support_format_iso9660.c @@ -409,7 +409,8 @@ static int next_entry_seek(struct archive_read *, struct iso9660 *, struct file_info **); static struct file_info * parse_file_info(struct archive_read *a, - struct file_info *parent, const unsigned char *isodirrec); + struct file_info *parent, const unsigned char *isodirrec, + size_t reclen); static int parse_rockridge(struct archive_read *a, struct file_info *file, const unsigned char *start, const unsigned char *end); @@ -1022,7 +1023,7 @@ read_children(struct archive_read *a, struct file_info *parent) if (*(p + DR_name_len_offset) == 1 && *(p + DR_name_offset) == '\001') continue; - child = parse_file_info(a, parent, p); + child = parse_file_info(a, parent, p, b - p); if (child == NULL) { __archive_read_consume(a, skip_size); return (ARCHIVE_FATAL); @@ -1112,7 +1113,7 @@ choose_volume(struct archive_read *a, struct iso9660 *iso9660) */ seenJoliet = iso9660->seenJoliet;/* Save flag. */ iso9660->seenJoliet = 0; - file = parse_file_info(a, NULL, block); + file = parse_file_info(a, NULL, block, vd->size); if (file == NULL) return (ARCHIVE_FATAL); iso9660->seenJoliet = seenJoliet; @@ -1144,7 +1145,7 @@ choose_volume(struct archive_read *a, struct iso9660 *iso9660) return (ARCHIVE_FATAL); } iso9660->seenJoliet = 0; - file = parse_file_info(a, NULL, block); + file = parse_file_info(a, NULL, block, vd->size); if (file == NULL) return (ARCHIVE_FATAL); iso9660->seenJoliet = seenJoliet; @@ -1749,7 +1750,7 @@ archive_read_format_iso9660_cleanup(struct archive_read *a) */ static struct file_info * parse_file_info(struct archive_read *a, struct file_info *parent, - const unsigned char *isodirrec) + const unsigned char *isodirrec, size_t reclen) { struct iso9660 *iso9660; struct file_info *file, *filep; @@ -1763,16 +1764,20 @@ parse_file_info(struct archive_read *a, struct file_info *parent, iso9660 = (struct iso9660 *)(a->format->data); - dr_len = (size_t)isodirrec[DR_length_offset]; - name_len = (size_t)isodirrec[DR_name_len_offset]; - location = archive_le32dec(isodirrec + DR_extent_offset); - fsize = toi(isodirrec + DR_size_offset, DR_size_size); - /* Sanity check that dr_len needs at least 34. */ - if (dr_len < 34) { + if (reclen != 0) + dr_len = (size_t)isodirrec[DR_length_offset]; + /* + * Sanity check that reclen is not zero and dr_len is greater than + * reclen but at least 34 + */ + if (reclen == 0 || reclen < dr_len || dr_len < 34) { archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, - "Invalid length of directory record"); + "Invalid length of directory record"); return (NULL); } + name_len = (size_t)isodirrec[DR_name_len_offset]; + location = archive_le32dec(isodirrec + DR_extent_offset); + fsize = toi(isodirrec + DR_size_offset, DR_size_size); /* Sanity check that name_len doesn't exceed dr_len. */ if (dr_len - 33 < name_len || name_len == 0) { archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, |