Lokesh Gidra 4e8b67477e UPSTREAM: security: add inode_init_security_anon() LSM hook ...

This change adds a new LSM hook, inode_init_security_anon(), that will
be used while creating secure anonymous inodes. The hook allows/denies
its creation and assigns a security context to the inode.

The new hook accepts an optional context_inode parameter that callers
can use to provide additional contextual information to security modules
for granting/denying permission to create an anon-inode of the same type.
This context_inode's security_context can also be used to initialize the
newly created anon-inode's security_context.

Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
(cherry picked from commit 215b674b84dd052098fe6389e32a5afaff8b4d56)
Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Bug: 160737021
Bug: 169683130
Change-Id: I2bbbb7a5c2371103c5b632b791c5c397ae228e0b

2021-02-05 11:03:49 +00:00

72 KiB

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