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Message-ID: <202211160913.CWTEBsKD-lkp@intel.com>
Date:   Wed, 16 Nov 2022 09:08:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Greg Ungerer <gerg@...ux-m68k.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: fs/binfmt_elf_fdpic.c:980:41: sparse: sparse: incorrect type in
 argument 1 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   81e7cfa3a9eb4ba6993a9c71772fdab21bc5d870
commit: 782f4c5c44e7d99d89740e272dc5ff84052c036a m68knommu: allow elf_fdpic loader to be selected
date:   6 months ago
config: m68k-randconfig-s043-20221115
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=782f4c5c44e7d99d89740e272dc5ff84052c036a
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 782f4c5c44e7d99d89740e272dc5ff84052c036a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

sparse warnings: (new ones prefixed by >>)
   fs/binfmt_elf_fdpic.c:619:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:619:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:619:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:623:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:623:17: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:623:17: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:630:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:630:17: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:630:17: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:637:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:637:17: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:637:17: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:642:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:642:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:642:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:646:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:646:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:646:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:647:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:647:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:647:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:648:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:648:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:648:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:649:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:649:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:649:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:650:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:650:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:650:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:651:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:651:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:651:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:654:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:654:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:654:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:655:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:655:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:655:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:656:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:656:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:656:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:657:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:657:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:657:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:658:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:658:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:658:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:659:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:659:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:659:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:660:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:660:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:660:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:661:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got struct <noident> [noderef] __user * @@
   fs/binfmt_elf_fdpic.c:661:9: sparse:     expected void const *from
   fs/binfmt_elf_fdpic.c:661:9: sparse:     got struct <noident> [noderef] __user *
   fs/binfmt_elf_fdpic.c:697:21: sparse: sparse: cast removes address space '__user' of expression
>> fs/binfmt_elf_fdpic.c:980:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *to @@     got void * @@
   fs/binfmt_elf_fdpic.c:980:41: sparse:     expected void [noderef] __user *to
   fs/binfmt_elf_fdpic.c:980:41: sparse:     got void *
   fs/binfmt_elf_fdpic.c:1154:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *to @@     got void * @@
   fs/binfmt_elf_fdpic.c:1154:55: sparse:     expected void [noderef] __user *to
   fs/binfmt_elf_fdpic.c:1154:55: sparse:     got void *
   fs/binfmt_elf_fdpic.c:619:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:619:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:623:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:623:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:630:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:630:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:637:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:637:17: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:642:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:642:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:646:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:646:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:647:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:647:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:648:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:648:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:649:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:649:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:650:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:650:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:651:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:651:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:654:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:654:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:655:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:655:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:656:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:656:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:657:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:657:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:658:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:658:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:659:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:659:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:660:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:660:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:661:9: sparse: sparse: dereference of noderef expression
   fs/binfmt_elf_fdpic.c:661:9: sparse: sparse: dereference of noderef expression

vim +980 fs/binfmt_elf_fdpic.c

^1da177e4c3f41 Linus Torvalds    2005-04-16   918  
^1da177e4c3f41 Linus Torvalds    2005-04-16   919  /*****************************************************************************/
^1da177e4c3f41 Linus Torvalds    2005-04-16   920  /*
^1da177e4c3f41 Linus Torvalds    2005-04-16   921   * map a file with constant displacement under uClinux
^1da177e4c3f41 Linus Torvalds    2005-04-16   922   */
^1da177e4c3f41 Linus Torvalds    2005-04-16   923  #ifndef CONFIG_MMU
8a2ab7f5df76b9 David Howells     2006-07-10   924  static int elf_fdpic_map_file_constdisp_on_uclinux(
8a2ab7f5df76b9 David Howells     2006-07-10   925  	struct elf_fdpic_params *params,
^1da177e4c3f41 Linus Torvalds    2005-04-16   926  	struct file *file,
^1da177e4c3f41 Linus Torvalds    2005-04-16   927  	struct mm_struct *mm)
^1da177e4c3f41 Linus Torvalds    2005-04-16   928  {
^1da177e4c3f41 Linus Torvalds    2005-04-16   929  	struct elf32_fdpic_loadseg *seg;
^1da177e4c3f41 Linus Torvalds    2005-04-16   930  	struct elf32_phdr *phdr;
a4eec6a3dfb7a6 David Hildenbrand 2021-06-28   931  	unsigned long load_addr, base = ULONG_MAX, top = 0, maddr = 0;
^1da177e4c3f41 Linus Torvalds    2005-04-16   932  	int loop, ret;
^1da177e4c3f41 Linus Torvalds    2005-04-16   933  
^1da177e4c3f41 Linus Torvalds    2005-04-16   934  	load_addr = params->load_addr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   935  	seg = params->loadmap->segs;
^1da177e4c3f41 Linus Torvalds    2005-04-16   936  
8a2ab7f5df76b9 David Howells     2006-07-10   937  	/* determine the bounds of the contiguous overall allocation we must
8a2ab7f5df76b9 David Howells     2006-07-10   938  	 * make */
^1da177e4c3f41 Linus Torvalds    2005-04-16   939  	phdr = params->phdrs;
^1da177e4c3f41 Linus Torvalds    2005-04-16   940  	for (loop = 0; loop < params->hdr.e_phnum; loop++, phdr++) {
^1da177e4c3f41 Linus Torvalds    2005-04-16   941  		if (params->phdrs[loop].p_type != PT_LOAD)
^1da177e4c3f41 Linus Torvalds    2005-04-16   942  			continue;
^1da177e4c3f41 Linus Torvalds    2005-04-16   943  
^1da177e4c3f41 Linus Torvalds    2005-04-16   944  		if (base > phdr->p_vaddr)
^1da177e4c3f41 Linus Torvalds    2005-04-16   945  			base = phdr->p_vaddr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   946  		if (top < phdr->p_vaddr + phdr->p_memsz)
^1da177e4c3f41 Linus Torvalds    2005-04-16   947  			top = phdr->p_vaddr + phdr->p_memsz;
^1da177e4c3f41 Linus Torvalds    2005-04-16   948  	}
^1da177e4c3f41 Linus Torvalds    2005-04-16   949  
^1da177e4c3f41 Linus Torvalds    2005-04-16   950  	/* allocate one big anon block for everything */
6be5ceb02e98ea Linus Torvalds    2012-04-20   951  	maddr = vm_mmap(NULL, load_addr, top - base,
a4eec6a3dfb7a6 David Hildenbrand 2021-06-28   952  			PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, 0);
8a2ab7f5df76b9 David Howells     2006-07-10   953  	if (IS_ERR_VALUE(maddr))
^1da177e4c3f41 Linus Torvalds    2005-04-16   954  		return (int) maddr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   955  
^1da177e4c3f41 Linus Torvalds    2005-04-16   956  	if (load_addr != 0)
^1da177e4c3f41 Linus Torvalds    2005-04-16   957  		load_addr += PAGE_ALIGN(top - base);
^1da177e4c3f41 Linus Torvalds    2005-04-16   958  
^1da177e4c3f41 Linus Torvalds    2005-04-16   959  	/* and then load the file segments into it */
^1da177e4c3f41 Linus Torvalds    2005-04-16   960  	phdr = params->phdrs;
^1da177e4c3f41 Linus Torvalds    2005-04-16   961  	for (loop = 0; loop < params->hdr.e_phnum; loop++, phdr++) {
^1da177e4c3f41 Linus Torvalds    2005-04-16   962  		if (params->phdrs[loop].p_type != PT_LOAD)
^1da177e4c3f41 Linus Torvalds    2005-04-16   963  			continue;
^1da177e4c3f41 Linus Torvalds    2005-04-16   964  
^1da177e4c3f41 Linus Torvalds    2005-04-16   965  		seg->addr = maddr + (phdr->p_vaddr - base);
^1da177e4c3f41 Linus Torvalds    2005-04-16   966  		seg->p_vaddr = phdr->p_vaddr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   967  		seg->p_memsz = phdr->p_memsz;
^1da177e4c3f41 Linus Torvalds    2005-04-16   968  
3dc20cb282ec03 Al Viro           2013-04-13   969  		ret = read_code(file, seg->addr, phdr->p_offset,
3dc20cb282ec03 Al Viro           2013-04-13   970  				       phdr->p_filesz);
^1da177e4c3f41 Linus Torvalds    2005-04-16   971  		if (ret < 0)
^1da177e4c3f41 Linus Torvalds    2005-04-16   972  			return ret;
^1da177e4c3f41 Linus Torvalds    2005-04-16   973  
^1da177e4c3f41 Linus Torvalds    2005-04-16   974  		/* map the ELF header address if in this segment */
^1da177e4c3f41 Linus Torvalds    2005-04-16   975  		if (phdr->p_offset == 0)
^1da177e4c3f41 Linus Torvalds    2005-04-16   976  			params->elfhdr_addr = seg->addr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   977  
^1da177e4c3f41 Linus Torvalds    2005-04-16   978  		/* clear any space allocated but not loaded */
ab4ad55512e95b Mike Frysinger    2009-04-02   979  		if (phdr->p_filesz < phdr->p_memsz) {
e30c7c3b306312 Takuya Yoshikawa  2010-06-01  @980  			if (clear_user((void *) (seg->addr + phdr->p_filesz),
e30c7c3b306312 Takuya Yoshikawa  2010-06-01   981  				       phdr->p_memsz - phdr->p_filesz))
e30c7c3b306312 Takuya Yoshikawa  2010-06-01   982  				return -EFAULT;
ab4ad55512e95b Mike Frysinger    2009-04-02   983  		}
^1da177e4c3f41 Linus Torvalds    2005-04-16   984  
^1da177e4c3f41 Linus Torvalds    2005-04-16   985  		if (mm) {
^1da177e4c3f41 Linus Torvalds    2005-04-16   986  			if (phdr->p_flags & PF_X) {
aa289b47231c95 David Howells     2007-03-23   987  				if (!mm->start_code) {
^1da177e4c3f41 Linus Torvalds    2005-04-16   988  					mm->start_code = seg->addr;
aa289b47231c95 David Howells     2007-03-23   989  					mm->end_code = seg->addr +
aa289b47231c95 David Howells     2007-03-23   990  						phdr->p_memsz;
aa289b47231c95 David Howells     2007-03-23   991  				}
8a2ab7f5df76b9 David Howells     2006-07-10   992  			} else if (!mm->start_data) {
^1da177e4c3f41 Linus Torvalds    2005-04-16   993  				mm->start_data = seg->addr;
^1da177e4c3f41 Linus Torvalds    2005-04-16   994  				mm->end_data = seg->addr + phdr->p_memsz;
^1da177e4c3f41 Linus Torvalds    2005-04-16   995  			}
^1da177e4c3f41 Linus Torvalds    2005-04-16   996  		}
^1da177e4c3f41 Linus Torvalds    2005-04-16   997  
^1da177e4c3f41 Linus Torvalds    2005-04-16   998  		seg++;
^1da177e4c3f41 Linus Torvalds    2005-04-16   999  	}
^1da177e4c3f41 Linus Torvalds    2005-04-16  1000  
^1da177e4c3f41 Linus Torvalds    2005-04-16  1001  	return 0;
8a2ab7f5df76b9 David Howells     2006-07-10  1002  }
^1da177e4c3f41 Linus Torvalds    2005-04-16  1003  #endif
^1da177e4c3f41 Linus Torvalds    2005-04-16  1004  

:::::: The code at line 980 was first introduced by commit
:::::: e30c7c3b306312c157d67eedd6a01920518b756c binfmt_elf_fdpic: Fix clear_user() error handling

:::::: TO: Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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