vfs: Verify acls are valid within superblock's s_user_ns.

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Update posix_acl_valid to verify that an acl is within a user namespace.

Update the callers of posix_acl_valid to pass in an appropriate
user namespace.  For posix_acl_xattr_set and v9fs_xattr_set_acl pass in
inode->i_sb->s_user_ns to posix_acl_valid.  For md_unpack_acl pass in
&init_user_ns as no inode or superblock is in sight.

Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

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This commit is contained in:

Eric W. Biederman 2016-06-27 16:04:06 -05:00

parent 37b11804ed

commit 0d4d717f25

4 changed files with 7 additions and 7 deletions

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include/linux/posix_acl.h

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