Re: [syzbot] [hfs?] KMSAN: uninit-value in hfsplus_cat_case_cmp_key

syzbot
2023-12-28T04:57:39Z

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Subject: [hfs?] KMSAN: uninit-value in hfsplus_cat_case_cmp_key
Author: lizhi.xu@windriver.com

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fbafc3e621c3

diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
index ca2ba8c9f82e..6773f6d2508f 100644
--- a/fs/hfsplus/bfind.c
+++ b/fs/hfsplus/bfind.c
@@ -23,6 +23,7 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
return -ENOMEM;
fd->search_key = ptr;
fd->key = ptr + tree->max_key_len + 2;
+ fd->key->cat.parent = 0;
hfs_dbg(BNODE_REFS, "find_init: %d (%p)\n",
tree->cnid, __builtin_return_address(0));
switch (tree->cnid) {