Commit 8c559d30 authored by Vasiliy Kulikov's avatar Vasiliy Kulikov Committed by Artem Bityutskiy
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UBIFS: restrict world-writable debugfs files 



Don't allow everybody to dump sensitive information about filesystems.

Signed-off-by: default avatarVasiliy Kulikov <segoon@openwall.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
parent be7b42a5

fs/ubifs/debug.c

+3 −3
Original line number Diff line number Diff line
@@ -2813,19 +2813,19 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) 
	}



	fname = "dump_lprops";

	dent = debugfs_create_file(fname, S_IWUGO, d->dfs_dir, c, &dfs_fops);

	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);

	if (IS_ERR(dent))

		goto out_remove;

	d->dfs_dump_lprops = dent;



	fname = "dump_budg";

	dent = debugfs_create_file(fname, S_IWUGO, d->dfs_dir, c, &dfs_fops);

	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);

	if (IS_ERR(dent))

		goto out_remove;

	d->dfs_dump_budg = dent;



	fname = "dump_tnc";

	dent = debugfs_create_file(fname, S_IWUGO, d->dfs_dir, c, &dfs_fops);

	dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops);

	if (IS_ERR(dent))

		goto out_remove;

	d->dfs_dump_tnc = dent;