[parted-devel] [PATCH] libparted: Fix possible memory leaks

[Amarnath Valluri]

* libparted/fs/r/fat/resize.c(fat_convert_directory): Possible leak
  of sub_old_dir_trav or sub_new_dir_trav in error case.
* libparted/fs/r/fat/resize.c(fat_construct_converted_tree ): Possible
  leak of new_trav_info or old_trav_info in error case.

Signed-off-by: Amarnath Valluri <amarnath.valluri at intel.com>
---
 libparted/fs/r/fat/resize.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/libparted/fs/r/fat/resize.c b/libparted/fs/r/fat/resize.c
index bfe60a0..3481e5b 100644
--- a/libparted/fs/r/fat/resize.c
+++ b/libparted/fs/r/fat/resize.c
@@ -177,10 +177,13 @@ fat_convert_directory (FatOpContext* ctx, FatTraverseInfo* old_trav,
 				&& old_dir_entry->name [0] != '.') {
 			sub_old_dir_trav
 			    = fat_traverse_directory (old_trav, old_dir_entry);
+			if (!sub_old_dir_trav) return 0;
 			sub_new_dir_trav
 			    = fat_traverse_directory (new_trav, new_dir_entry);
-			if (!sub_old_dir_trav || !sub_new_dir_trav)
+			if (!sub_new_dir_trav) {
+				fat_traverse_complete (sub_old_dir_trav);
 				return 0;
+			}
 
 			if (!fat_convert_directory (ctx, sub_old_dir_trav,
 						    sub_new_dir_trav))
@@ -315,17 +318,25 @@ fat_construct_converted_tree (FatOpContext* ctx)
 	if (new_fs_info->fat_type == FAT_TYPE_FAT32) {
 		new_trav_info = fat_traverse_begin (ctx->new_fs,
 					    new_fs_info->root_cluster, "\\");
+		if (!new_trav_info) return 0;
 		old_trav_info = fat_traverse_begin (ctx->old_fs, FAT_ROOT,
 						    "\\");
+		if (!old_trav_info) {
+			fat_traverse_complete (new_trav_info);
+			return 0;
+		}
 	} else {
 		fat_clear_root_dir (ctx->new_fs);
 		new_trav_info = fat_traverse_begin (ctx->new_fs, FAT_ROOT,
 						    "\\");
+		if (!new_trav_info) return 0;
 		old_trav_info = fat_traverse_begin (ctx->old_fs,
 					    old_fs_info->root_cluster, "\\");
+		if (!old_trav_info) {
+			fat_traverse_complete (new_trav_info);
+			return 0;
+		}
 	}
-	if (!new_trav_info || !old_trav_info)
-		return 0;
 	if (!fat_convert_directory (ctx, old_trav_info, new_trav_info))
 		return 0;
 	return 1;
-- 
1.9.4

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