diff options
Diffstat (limited to 'contrib/libarchive/libarchive/archive_read_support_filter_lz4.c')
| -rw-r--r-- | contrib/libarchive/libarchive/archive_read_support_filter_lz4.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/contrib/libarchive/libarchive/archive_read_support_filter_lz4.c b/contrib/libarchive/libarchive/archive_read_support_filter_lz4.c index 37b2f59..663e2d3 100644 --- a/contrib/libarchive/libarchive/archive_read_support_filter_lz4.c +++ b/contrib/libarchive/libarchive/archive_read_support_filter_lz4.c @@ -180,7 +180,7 @@ lz4_reader_bid(struct archive_read_filter_bidder *self, return (0); bits_checked += 8; BD = buffer[5]; - /* A block maximum size shuld be more than 3. */ + /* A block maximum size should be more than 3. */ if (((BD & 0x70) >> 4) < 4) return (0); /* Reserved bits must be "0". */ @@ -417,7 +417,7 @@ lz4_filter_read_descriptor(struct archive_read_filter *self) /* Reserved bits must be zero. */ if (bd & 0x8f) goto malformed_error; - /* Get a maxinum block size. */ + /* Get a maximum block size. */ switch (read_buf[1] >> 4) { case 4: /* 64 KB */ state->flags.block_maximum_size = 64 * 1024; @@ -627,7 +627,7 @@ lz4_filter_read_default_stream(struct archive_read_filter *self, const void **p) if (state->stage == SELECT_STREAM) { state->stage = READ_DEFAULT_STREAM; - /* First, read a desciprtor. */ + /* First, read a descriptor. */ if((ret = lz4_filter_read_descriptor(self)) != ARCHIVE_OK) return (ret); state->stage = READ_DEFAULT_BLOCK; @@ -706,6 +706,11 @@ lz4_filter_read_legacy_stream(struct archive_read_filter *self, const void **p) /* Make sure we have a whole block. */ read_buf = __archive_read_filter_ahead(self->upstream, 4 + compressed, NULL); + if (read_buf == NULL) { + archive_set_error(&(self->archive->archive), + ARCHIVE_ERRNO_MISC, "truncated lz4 input"); + return (ARCHIVE_FATAL); + } ret = LZ4_decompress_safe(read_buf + 4, state->out_block, compressed, (int)state->out_block_size); if (ret < 0) { |
