6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ard Biesheuvel <ardb@xxxxxxxxxx>
[ Upstream commit 547713d502f7b4b8efccd409cff84d731a23853b ]
Now that we allocate a s_fs_info struct on fs context creation, we
should ensure that we free it again when the superblock goes away.
Fixes: 5329aa5101f7 ("efivarfs: Add uid/gid mount options")
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/efivarfs/super.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index f5966cd95918..77c7615bba5e 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -250,10 +250,13 @@ static int efivarfs_init_fs_context(struct fs_context *fc)
static void efivarfs_kill_sb(struct super_block *sb)
{
+ struct efivarfs_fs_info *sfi = sb->s_fs_info;
+
kill_litter_super(sb);
/* Remove all entries and destroy */
efivar_entry_iter(efivarfs_destroy, &efivarfs_list, NULL);
+ kfree(sfi);
}
static struct file_system_type efivarfs_type = {
--
2.43.0
