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Message-ID: <202210202106.rYDuFyP2-lkp@intel.com>
Date: Thu, 20 Oct 2022 21:22:38 +0800
From: kernel test robot <lkp@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [kas:lam 5/18] kernel/signal.c:1268:29: sparse: sparse: incorrect
type in assignment (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git lam
head: 01819ca3dcb30fc9114025c8c5da8bcee0cabcee
commit: bb9d0488e7c6bfff85581168d4f49f48cd11ac36 [5/18] x86/uaccess: Provide untagged_addr() and remove tags before address check
config: i386-randconfig-s001
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git/commit/?id=bb9d0488e7c6bfff85581168d4f49f48cd11ac36
git remote add kas https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git
git fetch --no-tags kas lam
git checkout bb9d0488e7c6bfff85581168d4f49f48cd11ac36
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 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 >>)
kernel/signal.c: note: in included file (through arch/x86/include/uapi/asm/signal.h, arch/x86/include/asm/signal.h, include/uapi/linux/signal.h, ...):
include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
kernel/signal.c:195:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:195:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:195:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:198:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:198:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:198:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:480:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:480:9: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:480:9: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:484:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:484:34: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:484:34: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:517:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:517:9: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:517:9: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:520:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:520:36: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:520:36: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:542:53: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct k_sigaction *ka @@ got struct k_sigaction [noderef] __rcu * @@
kernel/signal.c:542:53: sparse: expected struct k_sigaction *ka
kernel/signal.c:542:53: sparse: got struct k_sigaction [noderef] __rcu *
include/uapi/asm-generic/signal-defs.h:83:29: sparse: sparse: multiple address spaces given
kernel/signal.c:698:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:698:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:698:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:700:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:700:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:700:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:765:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct lockdep_map const *lock @@ got struct lockdep_map [noderef] __rcu * @@
kernel/signal.c:765:9: sparse: expected struct lockdep_map const *lock
kernel/signal.c:765:9: sparse: got struct lockdep_map [noderef] __rcu *
kernel/signal.c:890:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct lockdep_map const *lock @@ got struct lockdep_map [noderef] __rcu * @@
kernel/signal.c:890:9: sparse: expected struct lockdep_map const *lock
kernel/signal.c:890:9: sparse: got struct lockdep_map [noderef] __rcu *
kernel/signal.c:1087:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct lockdep_map const *lock @@ got struct lockdep_map [noderef] __rcu * @@
kernel/signal.c:1087:9: sparse: expected struct lockdep_map const *lock
kernel/signal.c:1087:9: sparse: got struct lockdep_map [noderef] __rcu *
>> kernel/signal.c:1268:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [noderef] __user *__ptr_clean @@ got unsigned char * @@
kernel/signal.c:1268:29: sparse: expected unsigned char [noderef] __user *__ptr_clean
kernel/signal.c:1268:29: sparse: got unsigned char *
kernel/signal.c:1329:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:1329:9: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:1329:9: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:1330:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct k_sigaction *action @@ got struct k_sigaction [noderef] __rcu * @@
kernel/signal.c:1330:16: sparse: expected struct k_sigaction *action
kernel/signal.c:1330:16: sparse: got struct k_sigaction [noderef] __rcu *
kernel/signal.c:1350:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:1350:34: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:1350:34: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:1939:36: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:1939:36: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:1939:36: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2049:44: sparse: sparse: cast removes address space '__rcu' of expression
kernel/signal.c:2068:65: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2068:65: sparse: expected struct task_struct *tsk
kernel/signal.c:2068:65: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2069:40: sparse: sparse: cast removes address space '__rcu' of expression
kernel/signal.c:2087:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sighand_struct *psig @@ got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand @@
kernel/signal.c:2087:14: sparse: expected struct sighand_struct *psig
kernel/signal.c:2087:14: sparse: got struct sighand_struct [noderef] __rcu *[noderef] __rcu sighand
kernel/signal.c:2116:53: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct task_struct *t @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2116:53: sparse: expected struct task_struct *t
kernel/signal.c:2116:53: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2117:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2117:34: sparse: expected struct task_struct *parent
kernel/signal.c:2117:34: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2146:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2146:24: sparse: expected struct task_struct *parent
kernel/signal.c:2146:24: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2149:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *parent @@ got struct task_struct [noderef] __rcu *real_parent @@
kernel/signal.c:2149:24: sparse: expected struct task_struct *parent
kernel/signal.c:2149:24: sparse: got struct task_struct [noderef] __rcu *real_parent
kernel/signal.c:2182:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2182:17: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2182:17: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2222:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2222:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2222:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2224:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2224:39: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2224:39: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2281:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2281:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2281:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2316:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2316:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2316:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2356:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2356:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2356:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2358:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2358:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2358:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2458:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2458:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2458:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2542:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2542:41: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2542:41: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2554:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2554:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2554:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2589:52: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *parent @@
kernel/signal.c:2589:52: sparse: expected struct task_struct *tsk
kernel/signal.c:2589:52: sparse: got struct task_struct [noderef] __rcu *parent
kernel/signal.c:2591:49: sparse: sparse: cast removes address space '__rcu' of expression
kernel/signal.c:2629:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sighand_struct *sighand @@ got struct sighand_struct [noderef] __rcu *sighand @@
kernel/signal.c:2629:49: sparse: expected struct sighand_struct *sighand
kernel/signal.c:2629:49: sparse: got struct sighand_struct [noderef] __rcu *sighand
kernel/signal.c:2958:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2958:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2958:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:2978:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:2978:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:2978:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3045:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3045:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3045:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3047:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3047:29: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3047:29: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3198:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3198:31: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3198:31: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3201:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3201:33: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3201:33: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3590:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3590:27: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3590:27: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3602:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3602:37: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3602:37: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3607:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3607:35: sparse: expected struct spinlock [usertype] *lock
kernel/signal.c:3607:35: sparse: got struct spinlock [noderef] __rcu *
kernel/signal.c:3612:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/signal.c:3612:29: sparse: expected struct spinlock [usertype] *lock
vim +1268 kernel/signal.c
7978b567d31555 Sukadev Bhattiprolu 2009-04-02 1255
4aaefee589f97b Al Viro 2012-11-05 1256 static void print_fatal_signal(int signr)
45807a1df9f51d Ingo Molnar 2007-07-15 1257 {
4aaefee589f97b Al Viro 2012-11-05 1258 struct pt_regs *regs = signal_pt_regs();
747800efbe8b98 Wang Xiaoqiang 2016-05-23 1259 pr_info("potentially unexpected fatal signal %d.\n", signr);
45807a1df9f51d Ingo Molnar 2007-07-15 1260
ca5cd877ae699e Al Viro 2007-10-29 1261 #if defined(__i386__) && !defined(__arch_um__)
747800efbe8b98 Wang Xiaoqiang 2016-05-23 1262 pr_info("code at %08lx: ", regs->ip);
45807a1df9f51d Ingo Molnar 2007-07-15 1263 {
45807a1df9f51d Ingo Molnar 2007-07-15 1264 int i;
45807a1df9f51d Ingo Molnar 2007-07-15 1265 for (i = 0; i < 16; i++) {
45807a1df9f51d Ingo Molnar 2007-07-15 1266 unsigned char insn;
45807a1df9f51d Ingo Molnar 2007-07-15 1267
b45c6e76bc2c72 Andi Kleen 2010-01-08 @1268 if (get_user(insn, (unsigned char *)(regs->ip + i)))
b45c6e76bc2c72 Andi Kleen 2010-01-08 1269 break;
747800efbe8b98 Wang Xiaoqiang 2016-05-23 1270 pr_cont("%02x ", insn);
45807a1df9f51d Ingo Molnar 2007-07-15 1271 }
45807a1df9f51d Ingo Molnar 2007-07-15 1272 }
747800efbe8b98 Wang Xiaoqiang 2016-05-23 1273 pr_cont("\n");
45807a1df9f51d Ingo Molnar 2007-07-15 1274 #endif
3a9f84d354ce1e Ed Swierk 2009-01-26 1275 preempt_disable();
45807a1df9f51d Ingo Molnar 2007-07-15 1276 show_regs(regs);
3a9f84d354ce1e Ed Swierk 2009-01-26 1277 preempt_enable();
45807a1df9f51d Ingo Molnar 2007-07-15 1278 }
45807a1df9f51d Ingo Molnar 2007-07-15 1279
:::::: The code at line 1268 was first introduced by commit
:::::: b45c6e76bc2c72f6426c14bed64fdcbc9bf37cb0 kernel/signal.c: fix kernel information leak with print-fatal-signals=1
:::::: TO: Andi Kleen <andi@...stfloor.org>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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