On Mon, Jan 15, 2024 at 07:18:00PM +0100, Roberto Sassu wrote:
> From: Roberto Sassu <roberto.sa...@huawei.com>
> 
> In preparation for moving IMA and EVM to the LSM infrastructure, introduce
> the inode_post_set_acl hook.
> 
> At inode_set_acl hook, EVM verifies the file's existing HMAC value. At
> inode_post_set_acl, EVM re-calculates the file's HMAC based on the modified
> POSIX ACL and other file metadata.
> 
> Other LSMs could similarly take some action after successful POSIX ACL
> change.
> 
> The new hook cannot return an error and cannot cause the operation to be
> reverted.
> 
> Signed-off-by: Roberto Sassu <roberto.sa...@huawei.com>
> Reviewed-by: Stefan Berger <stef...@linux.ibm.com>
> Acked-by: Casey Schaufler <ca...@schaufler-ca.com>
> Reviewed-by: Mimi Zohar <zo...@linux.ibm.com>
> ---
>  fs/posix_acl.c                |  1 +

Acked-by: Christian Brauner <brau...@kernel.org>

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