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-rw-r--r--fs/squashfs/cache.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index 181260e72680..92fb857d2c76 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -344,6 +344,9 @@ int squashfs_read_metadata(struct super_block *sb, void *buffer,
if (unlikely(length < 0))
return -EIO;
+ if (unlikely(*offset < 0 || *offset >= SQUASHFS_METADATA_SIZE))
+ return -EIO;
+
while (length) {
entry = squashfs_cache_get(sb, msblk->block_cache, *block, 0);
if (entry->error) {