tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()

[platform/kernel/linux-starfive.git] / kernel / sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index 4a8073c..7a4ae6d 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2395,6 +2395,10 @@ static inline int prctl_set_mdwe(unsigned long bits, unsigned long arg3,
        if (bits & PR_MDWE_NO_INHERIT && !(bits & PR_MDWE_REFUSE_EXEC_GAIN))
                return -EINVAL;
 
+       /* PARISC cannot allow mdwe as it needs writable stacks */
+       if (IS_ENABLED(CONFIG_PARISC))
+               return -EINVAL;
+
        current_bits = get_current_mdwe();
        if (current_bits && current_bits != bits)
                return -EPERM; /* Cannot unset the flags */