From: kernel test robot <lkp@intel.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: oe-kbuild-all@lists.linux.dev, Kees Cook <kees@kernel.org>
Subject: [kees:for-next/hardening 3/5] fs/signalfd.c:53:40: sparse: sparse: incorrect type in initializer (different address spaces)
Date: Sat, 05 Sep 2026 01:55:26 +0800 [thread overview]
Message-ID: <202609050133.FiFJjPsm-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
head: 8d799af8b1b6f35fb1879e2e32c0a4d310984c7b
commit: 37eadcb919b02a742582de781097b455f7b16d76 [3/5] signalfd: don't dequeue the forced fatal signals
config: i386-randconfig-061-20260904 (https://download.01.org/0day-ci/archive/20260905/202609050133.FiFJjPsm-lkp@intel.com/config)
compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260905/202609050133.FiFJjPsm-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609050133.FiFJjPsm-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> fs/signalfd.c:53:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct k_sigaction *k @@ got struct k_sigaction [noderef] __rcu * @@
fs/signalfd.c:53:40: sparse: expected struct k_sigaction *k
fs/signalfd.c:53:40: sparse: got struct k_sigaction [noderef] __rcu *
fs/signalfd.c:69:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct wait_queue_head [usertype] *wait_address @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:69:33: sparse: expected struct wait_queue_head [usertype] *wait_address
fs/signalfd.c:69:33: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:71:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:71:31: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:71:31: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:76:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:76:33: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:76:33: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:110:32: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:128:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:131:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:135:33: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:151:32: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:155:38: sparse: sparse: cast removes address space '__user' of expression
fs/signalfd.c:175:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:175:31: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:175:31: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:185:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:185:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:185:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:189:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:189:32: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:189:32: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:199:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:199:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:199:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:201:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:201:39: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:201:39: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:204:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:204:33: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:204:33: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:206:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:206:35: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:206:35: sparse: got struct wait_queue_head [noderef] __rcu *
fs/signalfd.c:305:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:305:39: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:305:39: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:307:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
fs/signalfd.c:307:41: sparse: expected struct spinlock [usertype] *lock
fs/signalfd.c:307:41: sparse: got struct spinlock [noderef] __rcu *
fs/signalfd.c:309:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct wait_queue_head *wq_head @@ got struct wait_queue_head [noderef] __rcu * @@
fs/signalfd.c:309:17: sparse: expected struct wait_queue_head *wq_head
fs/signalfd.c:309:17: sparse: got struct wait_queue_head [noderef] __rcu *
vim +53 fs/signalfd.c
50
51 static void refine_sigmask(struct signalfd_ctx *ctx, sigset_t *sigmask)
52 {
> 53 struct k_sigaction *k = current->sighand->action;
54 int n;
55
56 *sigmask = ctx->sigmask;
57 for (n = 1; n <= _NSIG; ++n, ++k) {
58 if (k->sa.sa_flags & SA_IMMUTABLE)
59 sigaddset(sigmask, n);
60 }
61 }
62
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-09-04 17:55 UTC|newest]
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