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Subject[patch] hfs: copying wrong data in hfs_readdir()
Smatch complains that this is copying stack data when then intent was
to copy fd.key. The way I have written it matches how hfsplus_readdir()
is implemented.

Signed-off-by: Dan Carpenter <>
I tried to test this, but to reach the memcpy() you would need to make
one of the calls to filldir() fail and I don't know how to do that. I
think that in the original code this would cause a crash when we call

diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 62fc14e..f637bd5 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -162,7 +162,7 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
rd->file = filp;
list_add(&rd->list, &HFS_I(inode)->open_dir_list);
- memcpy(&rd->key, &fd.key, sizeof(struct hfs_cat_key));
+ memcpy(&rd->key, fd.key, sizeof(struct hfs_cat_key));
return err;

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