netfilter: nft_compat: narrow down revision to unsigned 8-bits

[platform/kernel/linux-starfive.git] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 97b4a42..011d690 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4508,8 +4508,9 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
                /* GSO partial only requires that we trim off any excess that
                 * doesn't fit into an MSS sized block, so take care of that
                 * now.
+                * Cap len to not accidentally hit GSO_BY_FRAGS.
                 */
-               partial_segs = len / mss;
+               partial_segs = min(len, GSO_BY_FRAGS - 1U) / mss;
                if (partial_segs > 1)
                        mss *= partial_segs;
                else
@@ -4810,7 +4811,9 @@ static __always_inline unsigned int skb_ext_total_length(void)
 static void skb_extensions_init(void)
 {
        BUILD_BUG_ON(SKB_EXT_NUM >= 8);
+#if !IS_ENABLED(CONFIG_KCOV_INSTRUMENT_ALL)
        BUILD_BUG_ON(skb_ext_total_length() > 255);
+#endif
 
        skbuff_ext_cache = kmem_cache_create("skbuff_ext_cache",
                                             SKB_EXT_ALIGN_VALUE * skb_ext_total_length(),