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229fd15908When copying a namespace we won't have added the new copy into the
namespace rbtree until after the copy succeeded. Calling free_mnt_ns()
will try to remove the copy from the rbtree which is invalid. Simply
free the namespace skeleton directly.
Link: https://lore.kernel.org/r/20241016-adapter-seilwinde-83c508a7bde1@brauner
Fixes: 1901c92497 ("fs: keep an index of current mount namespaces")
Tested-by: Brad Spengler <spender@grsecurity.net>
Cc: stable@vger.kernel.org # v6.11+
Reported-by: Brad Spengler <spender@grsecurity.net>
Suggested-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Christian Brauner <brauner@kernel.org>
5824 lines
143 KiB
5824 lines
143 KiB