net/ipv4/ip_sockglue.c:1489:13: sparse: sparse: incorrect type in initializer (different address spaces)

From: kernel test robot
Date: Tue Dec 29 2020 - 09:49:40 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3
commit: b6238c04c0e5dbe7ae4ea48e96e004905b120a04 net/ipv4: remove compat_ip_{get,set}sockopt
date: 5 months ago
config: csky-randconfig-s032-20201227 (attached as .config)
compiler: csky-linux-gcc (GCC) 9.3.0
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: v0.6.3-184-g1b896707-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b6238c04c0e5dbe7ae4ea48e96e004905b120a04
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b6238c04c0e5dbe7ae4ea48e96e004905b120a04
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=csky

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

"sparse warnings: (new ones prefixed by >>)"
net/ipv4/ip_sockglue.c:908:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *addr @@ got int const [noderef] __user *__gu_ptr @@
net/ipv4/ip_sockglue.c:908:29: sparse: expected void const *addr
net/ipv4/ip_sockglue.c:908:29: sparse: got int const [noderef] __user *__gu_ptr
net/ipv4/ip_sockglue.c:913:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *addr @@ got unsigned char const [noderef] __user *__gu_ptr @@
net/ipv4/ip_sockglue.c:913:29: sparse: expected void const *addr
net/ipv4/ip_sockglue.c:913:29: sparse: got unsigned char const [noderef] __user *__gu_ptr
net/ipv4/ip_sockglue.c:1456:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1456:13: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1456:13: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1488:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1488:13: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1488:13: sparse: got int [noderef] __user *optlen
>> net/ipv4/ip_sockglue.c:1489:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int *__pu_addr @@ got unsigned int [noderef] __user * @@
net/ipv4/ip_sockglue.c:1489:13: sparse: expected unsigned int *__pu_addr
net/ipv4/ip_sockglue.c:1489:13: sparse: got unsigned int [noderef] __user *
net/ipv4/ip_sockglue.c:1490:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int *__pu_addr @@ got unsigned int [noderef] __user * @@
net/ipv4/ip_sockglue.c:1490:13: sparse: expected unsigned int *__pu_addr
net/ipv4/ip_sockglue.c:1490:13: sparse: got unsigned int [noderef] __user *
net/ipv4/ip_sockglue.c:1509:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *addr @@ got int const [noderef] __user *__gu_ptr @@
net/ipv4/ip_sockglue.c:1509:13: sparse: expected void const *addr
net/ipv4/ip_sockglue.c:1509:13: sparse: got int const [noderef] __user *__gu_ptr
net/ipv4/ip_sockglue.c:1535:32: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1535:32: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1535:32: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1540:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1540:21: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1540:21: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1630:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1630:21: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1630:21: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1693:24: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1693:24: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1693:24: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1713:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1713:21: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1713:21: sparse: got int [noderef] __user *optlen
net/ipv4/ip_sockglue.c:1719:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user *optlen @@
net/ipv4/ip_sockglue.c:1719:21: sparse: expected int *__pu_addr
net/ipv4/ip_sockglue.c:1719:21: sparse: got int [noderef] __user *optlen

vim +1489 net/ipv4/ip_sockglue.c

49e74c24f31048b Christoph Hellwig 2020-07-17 1461
49e74c24f31048b Christoph Hellwig 2020-07-17 1462 static int compat_ip_get_mcast_msfilter(struct sock *sk, void __user *optval,
b6238c04c0e5dbe Christoph Hellwig 2020-07-17 1463 int __user *optlen, int len)
49e74c24f31048b Christoph Hellwig 2020-07-17 1464 {
49e74c24f31048b Christoph Hellwig 2020-07-17 1465 const int size0 = offsetof(struct compat_group_filter, gf_slist);
49e74c24f31048b Christoph Hellwig 2020-07-17 1466 struct compat_group_filter __user *p = optval;
49e74c24f31048b Christoph Hellwig 2020-07-17 1467 struct compat_group_filter gf32;
49e74c24f31048b Christoph Hellwig 2020-07-17 1468 struct group_filter gf;
49e74c24f31048b Christoph Hellwig 2020-07-17 1469 int num;
b6238c04c0e5dbe Christoph Hellwig 2020-07-17 1470 int err;
49e74c24f31048b Christoph Hellwig 2020-07-17 1471
49e74c24f31048b Christoph Hellwig 2020-07-17 1472 if (len < size0)
49e74c24f31048b Christoph Hellwig 2020-07-17 1473 return -EINVAL;
49e74c24f31048b Christoph Hellwig 2020-07-17 1474 if (copy_from_user(&gf32, p, size0))
49e74c24f31048b Christoph Hellwig 2020-07-17 1475 return -EFAULT;
49e74c24f31048b Christoph Hellwig 2020-07-17 1476
49e74c24f31048b Christoph Hellwig 2020-07-17 1477 gf.gf_interface = gf32.gf_interface;
49e74c24f31048b Christoph Hellwig 2020-07-17 1478 gf.gf_fmode = gf32.gf_fmode;
49e74c24f31048b Christoph Hellwig 2020-07-17 1479 num = gf.gf_numsrc = gf32.gf_numsrc;
49e74c24f31048b Christoph Hellwig 2020-07-17 1480 gf.gf_group = gf32.gf_group;
49e74c24f31048b Christoph Hellwig 2020-07-17 1481
49e74c24f31048b Christoph Hellwig 2020-07-17 1482 err = ip_mc_gsfget(sk, &gf, p->gf_slist);
49e74c24f31048b Christoph Hellwig 2020-07-17 1483 if (err)
49e74c24f31048b Christoph Hellwig 2020-07-17 1484 return err;
49e74c24f31048b Christoph Hellwig 2020-07-17 1485 if (gf.gf_numsrc < num)
49e74c24f31048b Christoph Hellwig 2020-07-17 1486 num = gf.gf_numsrc;
49e74c24f31048b Christoph Hellwig 2020-07-17 1487 len = GROUP_FILTER_SIZE(num) - (sizeof(gf) - sizeof(gf32));
49e74c24f31048b Christoph Hellwig 2020-07-17 1488 if (put_user(len, optlen) ||
49e74c24f31048b Christoph Hellwig 2020-07-17 @1489 put_user(gf.gf_fmode, &p->gf_fmode) ||
49e74c24f31048b Christoph Hellwig 2020-07-17 1490 put_user(gf.gf_numsrc, &p->gf_numsrc))
49e74c24f31048b Christoph Hellwig 2020-07-17 1491 return -EFAULT;
49e74c24f31048b Christoph Hellwig 2020-07-17 1492 return 0;
49e74c24f31048b Christoph Hellwig 2020-07-17 1493 }
49e74c24f31048b Christoph Hellwig 2020-07-17 1494

:::::: The code at line 1489 was first introduced by commit
:::::: 49e74c24f31048b4faa3cfcccb93f444abb0b910 net/ipv4: factor out MCAST_MSFILTER getsockopt helpers

:::::: TO: Christoph Hellwig <hch@xxxxxx>
:::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
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