4.18-stable review patch. If anyone has any objections, please let me know.
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From: Amir Goldstein amir73il@gmail.com
commit 63e132528032ce937126aba591a7b37ec593a6bb upstream.
The memory leak was detected by kmemleak when running xfstests overlay/051,053
Fixes: caf70cb2ba5d ("ovl: cleanup orphan index entries") Cc: stable@vger.kernel.org # v4.13 Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/overlayfs/util.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -531,7 +531,7 @@ static void ovl_cleanup_index(struct den struct dentry *upperdentry = ovl_dentry_upper(dentry); struct dentry *index = NULL; struct inode *inode; - struct qstr name; + struct qstr name = { }; int err;
err = ovl_get_index_name(lowerdentry, &name); @@ -574,6 +574,7 @@ static void ovl_cleanup_index(struct den goto fail;
out: + kfree(name.name); dput(index); return;