X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Ffutex_compat.c;h=d607a5b9ee29923617d462288e9853327c7d1527;hb=8be7cdccacfbfc707e7370cad9bb168defed636f;hp=04ac3a9e42cf58435dc3d3d689049e1bf1f91a8a;hpb=2a467d5f7d6bdc90c365db167a10022dd8351894;p=mv-sheeva.git

diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 04ac3a9e42c..d607a5b9ee2 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -135,6 +135,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
 {
 	struct compat_robust_list_head __user *head;
 	unsigned long ret;
+	const struct cred *cred = current_cred(), *pcred;
 
 	if (!futex_cmpxchg_enabled)
 		return -ENOSYS;
@@ -150,8 +151,10 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
 		if (!p)
 			goto err_unlock;
 		ret = -EPERM;
-		if ((current->euid != p->euid) && (current->euid != p->uid) &&
-				!capable(CAP_SYS_PTRACE))
+		pcred = __task_cred(p);
+		if (cred->euid != pcred->euid &&
+		    cred->euid != pcred->uid &&
+		    !capable(CAP_SYS_PTRACE))
 			goto err_unlock;
 		head = p->compat_robust_list;
 		read_unlock(&tasklist_lock);