On Fri, Jan 27, 2023 at 12:24 PM Richard Guy Briggs <rgb(a)redhat.com> wrote:
 Getting XATTRs is not particularly interesting security-wise.
 Suggested-by: Steve Grubb <sgrubb(a)redhat.com>
 Fixes: a56834e0fafe ("io_uring: add fgetxattr and getxattr support")
 Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com>
 ---
  io_uring/opdef.c | 2 ++
  1 file changed, 2 insertions(+) 
Depending on your security policy, fetching file data, including
xattrs, can be interesting from a security perspective.  As an
example, look at the SELinux file/getattr permission.
https://github.com/SELinuxProject/selinux-notebook/blob/main/src/object_c...
 diff --git a/io_uring/opdef.c b/io_uring/opdef.c
 index a2bf53b4a38a..f6bfe2cf078c 100644
 --- a/io_uring/opdef.c
 +++ b/io_uring/opdef.c
 @@ -462,12 +462,14 @@ const struct io_op_def io_op_defs[] = {
         },
         [IORING_OP_FGETXATTR] = {
                 .needs_file = 1,
 +               .audit_skip             = 1,
                 .name                   = "FGETXATTR",
                 .prep                   = io_fgetxattr_prep,
                 .issue                  = io_fgetxattr,
                 .cleanup                = io_xattr_cleanup,
         },
         [IORING_OP_GETXATTR] = {
 +               .audit_skip             = 1,
                 .name                   = "GETXATTR",
                 .prep                   = io_getxattr_prep,
                 .issue                  = io_getxattr,
 --
 2.27.0 
-- 
paul-moore.com