linux-kernel - ld.lld: error: call to __read_overflow marked "dontcall-error": detected read beyond size of object (1st parameter)

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Message-ID: <202505231544.lATsLNnT-lkp@intel.com>
Date: Fri, 23 May 2025 15:20:20 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <kees@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: ld.lld: error: call to __read_overflow marked "dontcall-error":
 detected read beyond size of object (1st parameter)

Hi Kees,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   94305e83eccb3120c921cd3a015cd74731140bac
commit: 6ee149f61bcce39692f0335a01e99355d4cec8da kunit/fortify: Replace "volatile" with OPTIMIZER_HIDE_VAR()
date:   2 months ago
config: arm64-randconfig-r063-20250523 (https://download.01.org/0day-ci/archive/20250523/202505231544.lATsLNnT-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250523/202505231544.lATsLNnT-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505231544.lATsLNnT-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: call to __read_overflow marked "dontcall-error": detected read beyond size of object (1st parameter)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki