x86/kexec: Disable RET on kexec

[linux-2.6-microblaze.git] / kernel / ucount.c

diff --git a/kernel/ucount.c b/kernel/ucount.c
index 65b5974..06ea04d 100644 (file)
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -350,7 +350,8 @@ bool is_ucounts_overlimit(struct ucounts *ucounts, enum ucount_type type, unsign
        if (rlimit > LONG_MAX)
                max = LONG_MAX;
        for (iter = ucounts; iter; iter = iter->ns->ucounts) {
-               if (get_ucounts_value(iter, type) > max)
+               long val = get_ucounts_value(iter, type);
+               if (val < 0 || val > max)
                        return true;
                max = READ_ONCE(iter->ns->ucount_max[type]);
        }