[kbuild-all] seccomp __user annotation fix backported too far in Android [was: Re: [ammarfaizi2-block:google/android/kernel/common/android12-5.4 3638/9999] kernel/seccomp.c:2041:41: sparse: sparse: incorrect type in argument 3 (different address spaces)]

tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-5.4 head: 3307e1a058380163f1a11c8f7632706168f9fcb1 commit: 5444477e8a4d31f6e6ff720c2d018d06e405bcc1 [3638/9999] UPSTREAM: seccomp: Remove bogus __user annotations config: x86_64-randconfig-s022 (https://download.01.org/0day-ci/archive/20220125/202201251943.TPk8Y7Ob-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/ammarfaizi2/linux-block/commit/5444477e8a4d31f6e6ff720... git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-5.4 git checkout 5444477e8a4d31f6e6ff720c2d018d06e405bcc1 # save the config file to linux build tree mkdir build_dir make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt;

sparse warnings: (new ones prefixed by >>) >> kernel/seccomp.c:2041:41: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void [noderef] <asn:1> * @@ got void *buffer @@ kernel/seccomp.c:2041:41: sparse: expected void [noderef] <asn:1> * kernel/seccomp.c:2041:41: sparse: got void *buffer kernel/seccomp.c:2059:40: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void [noderef] <asn:1> * @@ got void *buffer @@ kernel/seccomp.c:2059:40: sparse: expected void [noderef] <asn:1> * kernel/seccomp.c:2059:40: sparse: got void *buffer >> kernel/seccomp.c:2115:54: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *buffer @@ got void [noderef] <asn:1> *buffer @@ kernel/seccomp.c:2115:54: sparse: expected void *buffer kernel/seccomp.c:2115:54: sparse: got void [noderef] <asn:1> *buffer kernel/seccomp.c:2119:53: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *buffer @@ got void [noderef] <asn:1> *buffer @@ kernel/seccomp.c:2119:53: sparse: expected void *buffer kernel/seccomp.c:2119:53: sparse: got void [noderef] <asn:1> *buffer vim +2041 kernel/seccomp.c 0ddec0fc890020 Tyler Hicks 2017-08-11 2025 5444477e8a4d31 Jann Horn 2020-11-20 2026 static int read_actions_logged(struct ctl_table *ro_table, void *buffer, d013db029491b4 Tyler Hicks 2018-05-04 2027 size_t *lenp, loff_t *ppos) 0ddec0fc890020 Tyler Hicks 2017-08-11 2028 { 0ddec0fc890020 Tyler Hicks 2017-08-11 2029 char names[sizeof(seccomp_actions_avail)]; 0ddec0fc890020 Tyler Hicks 2017-08-11 2030 struct ctl_table table; 0ddec0fc890020 Tyler Hicks 2017-08-11 2031 0ddec0fc890020 Tyler Hicks 2017-08-11 2032 memset(names, 0, sizeof(names)); 0ddec0fc890020 Tyler Hicks 2017-08-11 2033 0ddec0fc890020 Tyler Hicks 2017-08-11 2034 if (!seccomp_names_from_actions_logged(names, sizeof(names), beb44acaf000c9 Tyler Hicks 2018-05-04 2035 seccomp_actions_logged, " ")) 0ddec0fc890020 Tyler Hicks 2017-08-11 2036 return -EINVAL; d013db029491b4 Tyler Hicks 2018-05-04 2037 d013db029491b4 Tyler Hicks 2018-05-04 2038 table = *ro_table; d013db029491b4 Tyler Hicks 2018-05-04 2039 table.data = names; d013db029491b4 Tyler Hicks 2018-05-04 2040 table.maxlen = sizeof(names); d013db029491b4 Tyler Hicks 2018-05-04 @2041 return proc_dostring(&table, 0, buffer, lenp, ppos); 0ddec0fc890020 Tyler Hicks 2017-08-11 2042 }