In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of mount(2).
https://git.kernel.org/stable/c/c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2
https://git.kernel.org/stable/c/9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23
https://git.kernel.org/stable/c/787937c4e373f1722c4343e5a5a4eb0f8543e589
https://git.kernel.org/stable/c/4f091ad0862b02dc42a19a120b7048de848561f8
https://git.kernel.org/stable/c/432a171d60056489270c462e651e6c3a13f855b1
https://git.kernel.org/stable/c/19554c79a2095ddde850906a067915c1ef3a4114
https://git.kernel.org/stable/c/12f147ddd6de7382dad54812e65f3f08d05809fc
https://git.kernel.org/stable/c/064014f7812744451d5d0592f3d2bcd727f2ee93