[TEST/fuzz] case: 004-simple-dump-tree
Since the wrong key(DATA_RELOC_TREE CHUNK_ITEM 0) in root tree,
error calling print_chunk(), resulting in num_stripes == 0.
ERROR:
[TEST/fuzz] 004-simple-dump-tree
ctree.h:317: btrfs_chunk_item_size: BUG_ON `num_stripes == 0`
triggered, value 1
failed (ignored, ret=134): /myproject/btrfs-progs/btrfs
inspect-internal dump-tree
/myproject/btrfs-progs/tests/fuzz-tests/images/
bko-155201-wrong-chunk-item-in-root-tree.raw.restored
test failed for case 004-simple-dump-tree
Makefile:288: recipe for target 'test-fuzz' failed
make: *** [test-fuzz] Error 1
So, check on num_stripes in print_chunk
Signed-off-by: Zhang Yu <zhangyu-fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
{
u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
int i;
- u32 chunk_item_size = btrfs_chunk_item_size(num_stripes);
+ u32 chunk_item_size;
char chunk_flags_str[32] = {0};
+ /* The chunk must contain at least one stripe */
+ if (num_stripes < 1) {
+ printf("invalid num_stripes: %u\n", num_stripes);
+ return;
+ }
+
+ chunk_item_size = btrfs_chunk_item_size(num_stripes);
+
if ((unsigned long)chunk + chunk_item_size > eb->len) {
printf("\t\tchunk item invalid\n");
return;