diff options
| author | Paul Moore | 2022-01-27 10:45:59 -0500 |
|---|---|---|
| committer | Paul Moore | 2022-01-27 12:52:43 -0500 |
| commit | cdeea45422f579b9302e377d1ede29133d3fde8e (patch) | |
| tree | 88ec6e174874d9b7262f9c9f6ee8fb8487ed3c19 | |
| parent | b5e68162f859132af419af479bdb96e2ae18fa2b (diff) | |
selinux: fix a type cast problem in cred_init_security()
In the process of removing an explicit type cast to preserve a cred
const qualifier in cred_init_security() we ran into a problem where
the task_struct::real_cred field is defined with the "__rcu"
attribute but the selinux_cred() function parameter is not, leading
to a sparse warning:
security/selinux/hooks.c:216:36: sparse: sparse:
incorrect type in argument 1 (different address spaces)
@@ expected struct cred const *cred
@@ got struct cred const [noderef] __rcu *real_cred
As we don't want to add the "__rcu" attribute to the selinux_cred()
parameter, we're going to add an explicit cast back to
cred_init_security().
Fixes: b084e189b01a ("selinux: simplify cred_init_security")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
| -rw-r--r-- | security/selinux/hooks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index eae7dbd62df1..221e642025f5 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -213,7 +213,7 @@ static void cred_init_security(void) { struct task_security_struct *tsec; - tsec = selinux_cred(current->real_cred); + tsec = selinux_cred(unrcu_pointer(current->real_cred)); tsec->osid = tsec->sid = SECINITSID_KERNEL; } |