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| author | Eric W. Biederman <ebiederm@xmission.com> | 2016-06-27 23:04:06 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2016-07-01 01:04:58 +0200 |
| commit | 0d4d717f25834134bb6f43284f84c8ccee5bbf2a (patch) | |
| tree | aa4f4605f45bca718b01483e90835731227ef341 /fs/9p/acl.c | |
| parent | userns: Handle -1 in k[ug]id_has_mapping when !CONFIG_USER_NS (diff) | |
| download | linux-0d4d717f25834134bb6f43284f84c8ccee5bbf2a.tar.xz linux-0d4d717f25834134bb6f43284f84c8ccee5bbf2a.zip | |
vfs: Verify acls are valid within superblock's s_user_ns.
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>
Diffstat (limited to 'fs/9p/acl.c')
| -rw-r--r-- | fs/9p/acl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c index 0576eaeb60b9..5b6a1743ea17 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -266,7 +266,7 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { - retval = posix_acl_valid(acl); + retval = posix_acl_valid(inode->i_sb->s_user_ns, acl); if (retval) goto err_out; } |