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-rw-r--r--core/tee/tee_rpmb_fs.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/tee/tee_rpmb_fs.c b/core/tee/tee_rpmb_fs.c
index cbf3f3c0..bea18f4b 100644
--- a/core/tee/tee_rpmb_fs.c
+++ b/core/tee/tee_rpmb_fs.c
@@ -1650,7 +1650,8 @@ static TEE_Result __maybe_unused fat_entry_dir_update
sizeof(struct rpmb_fat_entry);
/* Only need to write if index points to an entry in cache. */
- if (fat_entry_buf_idx < max_cache_entries) {
+ if (fat_entry_buf_idx < fat_entry_dir->num_buffered &&
+ fat_entry_buf_idx < max_cache_entries) {
memcpy(fat_entry_dir->rpmb_fat_entry_buf + fat_entry_buf_idx,
fat_entry, sizeof(struct rpmb_fat_entry));
}