diff options
Diffstat (limited to 'archival')
| -rw-r--r-- | archival/libarchive/decompress_unlzma.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/archival/libarchive/decompress_unlzma.c b/archival/libarchive/decompress_unlzma.c index 446319e7b..6886239d0 100644 --- a/archival/libarchive/decompress_unlzma.c +++ b/archival/libarchive/decompress_unlzma.c @@ -350,8 +350,12 @@ unpack_lzma_stream(transformer_state_t *xstate) state = state < LZMA_NUM_LIT_STATES ? 9 : 11; pos = buffer_pos - rep0; - if ((int32_t)pos < 0) + if ((int32_t)pos < 0) { pos += header.dict_size; + /* see unzip_bad_lzma_2.zip: */ + if (pos >= buffer_size) + goto bad; + } previous_byte = buffer[pos]; goto one_byte1; #else |