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

From: Edward Adam Davis
Date: Tue Jan 09 2024 - 20:53:27 EST


please test uninit-value in hfsplus_lookup

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 861deac3b092

diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 1986b4f18a90..a95a6a2246a3 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -73,6 +73,7 @@ struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino)
HFSPLUS_I(inode)->flags = 0;
HFSPLUS_I(inode)->extent_state = 0;
HFSPLUS_I(inode)->rsrc_inode = NULL;
+ HFSPLUS_I(inode)->create_date = 0;
atomic_set(&HFSPLUS_I(inode)->opencnt, 0);

if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID ||