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X-CSE-ConnectionGUID: Ytt7n3ptSWWUKOUI6ycJmA== X-CSE-MsgGUID: dwRf9L93TI+oBzPbo8JTfg== X-IronPort-AV: E=McAfee;i="6800,10657,11675"; a="80701921" X-IronPort-AV: E=Sophos;i="6.21,235,1763452800"; d="scan'208";a="80701921" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2026 07:04:59 -0800 X-CSE-ConnectionGUID: fKRgpqtXSjOvWExADb+Dow== X-CSE-MsgGUID: OIPAFjaoS+2dI3AJlz5plA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,235,1763452800"; d="scan'208";a="243216544" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa001.jf.intel.com with ESMTP; 18 Jan 2026 07:04:57 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vhUKk-00000000N1m-2tGW; Sun, 18 Jan 2026 15:04:54 +0000 Date: Sun, 18 Jan 2026 23:04:29 +0800 From: kernel test robot To: Christian Brauner Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Amir Goldstein Subject: fs/overlayfs/dir.c:588:13: sparse: sparse: incompatible types in comparison expression (different address spaces): Message-ID: <202601182248.liv5wrSK-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e84d960149e71e8d5e4db69775ce31305898ed0c commit: f37b334728814b14745e15d46f9eab73750b67ec ovl: add ovl_override_creator_creds cred guard date: 9 weeks ago config: i386-randconfig-061-20260118 (https://download.01.org/0day-ci/archive/20260118/202601182248.liv5wrSK-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260118/202601182248.liv5wrSK-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202601182248.liv5wrSK-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> fs/overlayfs/dir.c:588:13: sparse: sparse: incompatible types in comparison expression (different address spaces): fs/overlayfs/dir.c:588:13: sparse: struct cred const [noderef] __rcu * fs/overlayfs/dir.c:588:13: sparse: struct cred const * vim +588 fs/overlayfs/dir.c 583 584 static const struct cred *ovl_override_creator_creds(struct dentry *dentry, struct inode *inode, umode_t mode) 585 { 586 int err; 587 > 588 if (WARN_ON_ONCE(current->cred != ovl_creds(dentry->d_sb))) 589 return ERR_PTR(-EINVAL); 590 591 CLASS(prepare_creds, override_cred)(); 592 if (!override_cred) 593 return ERR_PTR(-ENOMEM); 594 595 override_cred->fsuid = inode->i_uid; 596 override_cred->fsgid = inode->i_gid; 597 598 err = security_dentry_create_files_as(dentry, mode, &dentry->d_name, 599 current->cred, override_cred); 600 if (err) 601 return ERR_PTR(err); 602 603 return override_creds(no_free_ptr(override_cred)); 604 } 605 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki