This is a note to let you know that I've just added the patch titled
efivarfs: Free s_fs_info on unmount
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
efivarfs-free-s_fs_info-on-unmount.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7ef43c5114d1adfea92dc9c013b3c3bdba2d0555
Author: Ard Biesheuvel <ardb@xxxxxxxxxx>
Date: Fri Dec 8 17:39:28 2023 +0100
efivarfs: Free s_fs_info on unmount
[ 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>
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 = {
