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(parent: c28f922) | patch
do_change_type(): refuse to operate on unmounted/not ours mounts
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 4 Jun 2025 16:27:08 +0000 (12:27 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 7 Jun 2025 05:37:56 +0000 (01:37 -0400)
commit12f147ddd6de7382dad54812e65f3f08d05809fc
treef80b09accd93e5e61c8bb63b8c59be1dbc3ac1bdtree
parentc28f922c9dcee0e4876a2c095939d77fe7e15116commit | diff
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).

Reviewed-by: Christian Brauner <brauner@kernel.org>
Fixes: 07b20889e305 ("beginning of the shared-subtree proper")
Reported-by: "Orlando, Noah" <Noah.Orlando@deshaw.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/namespace.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)