diff options
| -rw-r--r-- | fs/squashfs/sqfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/squashfs/sqfs.c b/fs/squashfs/sqfs.c index 435081638b..1ecdd01cf7 100644 --- a/fs/squashfs/sqfs.c +++ b/fs/squashfs/sqfs.c @@ -1415,6 +1415,8 @@ int sqfs_read(const char *filename, void *buf, loff_t offset, loff_t len, } finfo.size = len; + } else { + len = finfo.size; } if (datablk_count) { @@ -1461,9 +1463,13 @@ int sqfs_read(const char *filename, void *buf, loff_t offset, loff_t len, if (ret) goto out; + if ((*actread + dest_len) > len) + dest_len = len - *actread; memcpy(buf + offset + *actread, datablock, dest_len); *actread += dest_len; } else { + if ((*actread + table_size) > len) + table_size = len - *actread; memcpy(buf + offset + *actread, data, table_size); *actread += table_size; } @@ -1471,6 +1477,8 @@ int sqfs_read(const char *filename, void *buf, loff_t offset, loff_t len, data_offset += table_size; free(data_buffer); data_buffer = NULL; + if (*actread >= len) + break; } /* |