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-rw-r--r--kernel/futex_compat.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 04ac3a9e42cf..3254d4e41e88 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,
135{ 135{
136 struct compat_robust_list_head __user *head; 136 struct compat_robust_list_head __user *head;
137 unsigned long ret; 137 unsigned long ret;
138 uid_t euid = current_euid();
138 139
139 if (!futex_cmpxchg_enabled) 140 if (!futex_cmpxchg_enabled)
140 return -ENOSYS; 141 return -ENOSYS;
@@ -150,7 +151,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
150 if (!p) 151 if (!p)
151 goto err_unlock; 152 goto err_unlock;
152 ret = -EPERM; 153 ret = -EPERM;
153 if ((current->euid != p->euid) && (current->euid != p->uid) && 154 if (euid != p->euid && euid != p->uid &&
154 !capable(CAP_SYS_PTRACE)) 155 !capable(CAP_SYS_PTRACE))
155 goto err_unlock; 156 goto err_unlock;
156 head = p->compat_robust_list; 157 head = p->compat_robust_list;