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Biederman" , Adrian Reber , Thomas Gleixner , Jens Axboe , Alexei Starovoitov , "linux-fsdevel@vger.kernel.org" , "linux-kernel@vger.kernel.org" , linux-kselftest@vger.kernel.org, tiozhang , Luis Chamberlain , "Paulo Alcantara (SUSE)" , Sergey Senozhatsky , Frederic Weisbecker Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List Subject: Re: [PATCH v12] exec: Fix dead-lock in de_thread with ptrace_attach Message-ID: <202310301604.K866zRJ8-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: D6E6C40029 X-Stat-Signature: fn9es5qaa8emsn61c5byh8yfpntjtixg X-Rspam-User: X-HE-Tag: 1698656461-612184 X-HE-Meta: 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 g3yUXaqV 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Bernd, kernel test robot noticed the following build warnings: [auto build test WARNING on kees/for-next/execve] [also build test WARNING on kees/for-next/seccomp shuah-kselftest/next shuah-kselftest/fixes linus/master v6.6] [cannot apply to next-20231030] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Bernd-Edlinger/exec-Fix-dead-lock-in-de_thread-with-ptrace_attach/20231030-133021 base: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/execve patch link: https://lore.kernel.org/r/AS8P193MB1285DF698D7524EDE22ABFA1E4A1A%40AS8P193MB1285.EURP193.PROD.OUTLOOK.COM patch subject: [PATCH v12] exec: Fix dead-lock in de_thread with ptrace_attach config: loongarch-randconfig-002-20231030 (https://download.01.org/0day-ci/archive/20231030/202310301604.K866zRJ8-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231030/202310301604.K866zRJ8-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/202310301604.K866zRJ8-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/cred.c:443: warning: duplicate section name 'Return' vim +/Return +443 kernel/cred.c 435 436 /** 437 * is_dumpability_changed - Will changing creds from old to new 438 * affect the dumpability in commit_creds? 439 * 440 * Return: false - dumpability will not be changed in commit_creds. 441 * Return: true - dumpability will be changed to non-dumpable. 442 * > 443 * @old: The old credentials 444 * @new: The new credentials 445 */ 446 bool is_dumpability_changed(const struct cred *old, const struct cred *new) 447 { 448 if (!uid_eq(old->euid, new->euid) || 449 !gid_eq(old->egid, new->egid) || 450 !uid_eq(old->fsuid, new->fsuid) || 451 !gid_eq(old->fsgid, new->fsgid) || 452 !cred_cap_issubset(old, new)) 453 return true; 454 455 return false; 456 } 457 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki