From: Zhang Yu <zhangyu-f...@cn.fujitsu.com> [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-f...@cn.fujitsu.com> --- print-tree.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/print-tree.c b/print-tree.c index a0d3395..08f7edb 100644 --- a/print-tree.c +++ b/print-tree.c @@ -199,6 +199,15 @@ void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) { int num_stripes = btrfs_chunk_num_stripes(eb, chunk); int i; + /* + * check on num_stripes + * Btrfs_chunk contains at least one stripes + */ + if (num_stripes < 1) { + printf("invalid num_stripes: %u\n", num_stripes); + return; + } + u32 chunk_item_size = btrfs_chunk_item_size(num_stripes); char chunk_flags_str[32] = {0}; -- 2.9.4 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html