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Date: Thu, 18 Jun 2020 01:22:10 +0800
From: kernel test robot <lkp@...el.com>
To: Stanislav Fomichev <sdf@...gle.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Alexei Starovoitov <ast@...nel.org>
Subject: kernel/bpf/cgroup.c:1111:13: sparse: sparse: incorrect type in
initializer (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 69119673bd50b176ded34032fadd41530fb5af21
commit: 0d01da6afc5402f60325c5da31b22f7d56689b49 bpf: implement getsockopt and setsockopt hooks
date: 12 months ago
config: openrisc-randconfig-s032-20200617 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-rc1-6-g78f577f8-dirty
git checkout 0d01da6afc5402f60325c5da31b22f7d56689b49
# save the attached .config to linux build tree
make W=1 C=1 ARCH=openrisc CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
kernel/bpf/cgroup.c:1073:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int const *__gu_addr @@ got int [noderef] <asn:1> *optlen @@
kernel/bpf/cgroup.c:1073:21: sparse: expected int const *__gu_addr
kernel/bpf/cgroup.c:1073:21: sparse: got int [noderef] <asn:1> *optlen
>> kernel/bpf/cgroup.c:1111:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] <asn:1> *optlen @@
>> kernel/bpf/cgroup.c:1111:13: sparse: expected int *__pu_addr
kernel/bpf/cgroup.c:1111:13: sparse: got int [noderef] <asn:1> *optlen
include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] <asn:1> *to @@
include/linux/uaccess.h:131:38: sparse: expected void *to
include/linux/uaccess.h:131:38: sparse: got void [noderef] <asn:1> *to
include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got void const *from @@
include/linux/uaccess.h:131:42: sparse: expected void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:42: sparse: got void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] <asn:1> *from @@
arch/openrisc/include/asm/uaccess.h:246:55: sparse: expected void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: got void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] <asn:1> *to @@
include/linux/uaccess.h:131:38: sparse: expected void *to
include/linux/uaccess.h:131:38: sparse: got void [noderef] <asn:1> *to
include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got void const *from @@
include/linux/uaccess.h:131:42: sparse: expected void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:42: sparse: got void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] <asn:1> *from @@
arch/openrisc/include/asm/uaccess.h:246:55: sparse: expected void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: got void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] <asn:1> *to @@
include/linux/uaccess.h:131:38: sparse: expected void *to
include/linux/uaccess.h:131:38: sparse: got void [noderef] <asn:1> *to
include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got void const *from @@
include/linux/uaccess.h:131:42: sparse: expected void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:42: sparse: got void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] <asn:1> *from @@
arch/openrisc/include/asm/uaccess.h:246:55: sparse: expected void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: got void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] <asn:1> *to @@
include/linux/uaccess.h:131:38: sparse: expected void *to
include/linux/uaccess.h:131:38: sparse: got void [noderef] <asn:1> *to
include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got void const *from @@
include/linux/uaccess.h:131:42: sparse: expected void const [noderef] <asn:1> *from
include/linux/uaccess.h:131:42: sparse: got void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] <asn:1> *from @@
arch/openrisc/include/asm/uaccess.h:246:55: sparse: expected void const *from
arch/openrisc/include/asm/uaccess.h:246:55: sparse: got void const [noderef] <asn:1> *from
vim +1111 kernel/bpf/cgroup.c
1038
1039 int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
1040 int optname, char __user *optval,
1041 int __user *optlen, int max_optlen,
1042 int retval)
1043 {
1044 struct cgroup *cgrp = sock_cgroup_ptr(&sk->sk_cgrp_data);
1045 struct bpf_sockopt_kern ctx = {
1046 .sk = sk,
1047 .level = level,
1048 .optname = optname,
1049 .retval = retval,
1050 };
1051 int ret;
1052
1053 /* Opportunistic check to see whether we have any BPF program
1054 * attached to the hook so we don't waste time allocating
1055 * memory and locking the socket.
1056 */
1057 if (!cgroup_bpf_enabled ||
1058 __cgroup_bpf_prog_array_is_empty(cgrp, BPF_CGROUP_GETSOCKOPT))
1059 return retval;
1060
1061 ret = sockopt_alloc_buf(&ctx, max_optlen);
1062 if (ret)
1063 return ret;
1064
1065 if (!retval) {
1066 /* If kernel getsockopt finished successfully,
1067 * copy whatever was returned to the user back
1068 * into our temporary buffer. Set optlen to the
1069 * one that kernel returned as well to let
1070 * BPF programs inspect the value.
1071 */
1072
> 1073 if (get_user(ctx.optlen, optlen)) {
1074 ret = -EFAULT;
1075 goto out;
1076 }
1077
1078 if (ctx.optlen > max_optlen)
1079 ctx.optlen = max_optlen;
1080
1081 if (copy_from_user(ctx.optval, optval, ctx.optlen) != 0) {
1082 ret = -EFAULT;
1083 goto out;
1084 }
1085 }
1086
1087 lock_sock(sk);
1088 ret = BPF_PROG_RUN_ARRAY(cgrp->bpf.effective[BPF_CGROUP_GETSOCKOPT],
1089 &ctx, BPF_PROG_RUN);
1090 release_sock(sk);
1091
1092 if (!ret) {
1093 ret = -EPERM;
1094 goto out;
1095 }
1096
1097 if (ctx.optlen > max_optlen) {
1098 ret = -EFAULT;
1099 goto out;
1100 }
1101
1102 /* BPF programs only allowed to set retval to 0, not some
1103 * arbitrary value.
1104 */
1105 if (ctx.retval != 0 && ctx.retval != retval) {
1106 ret = -EFAULT;
1107 goto out;
1108 }
1109
1110 if (copy_to_user(optval, ctx.optval, ctx.optlen) ||
> 1111 put_user(ctx.optlen, optlen)) {
1112 ret = -EFAULT;
1113 goto out;
1114 }
1115
1116 ret = ctx.retval;
1117
1118 out:
1119 sockopt_free_buf(&ctx);
1120 return ret;
1121 }
1122 EXPORT_SYMBOL(__cgroup_bpf_run_filter_getsockopt);
1123
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Download attachment ".config.gz" of type "application/gzip" (24326 bytes)
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