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authorDavid S. Miller <davem@davemloft.net>2022-04-15 11:20:10 +0100
committerDavid S. Miller <davem@davemloft.net>2022-04-15 11:20:10 +0100
commit2cc7fb9d24129be0612df8d32a1358ac91ead8d1 (patch)
treebb9ae3ad85f9784e066139358ce441b22713589e /net/ipv6
parent29e8e659f984be00d75ec5fef4e37c88def72712 (diff)
parent5bd8baab087dff657e05387aee802e70304cc813 (diff)
downloadlinux-2cc7fb9d24129be0612df8d32a1358ac91ead8d1.tar.bz2
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says: ==================== pull request (net): ipsec 2022-04-14 1) Fix the output interface for VRF cases in xfrm_dst_lookup. From David Ahern. 2) Fix write out of bounds by doing COW on esp output when the packet size is larger than a page. From Sabrina Dubroca. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/esp6.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 55d604c9b3b3..f2120e92caf1 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -482,7 +482,6 @@ int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info
struct page *page;
struct sk_buff *trailer;
int tailen = esp->tailen;
- unsigned int allocsz;
if (x->encap) {
int err = esp6_output_encap(x, skb, esp);
@@ -491,8 +490,8 @@ int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info
return err;
}
- allocsz = ALIGN(skb->data_len + tailen, L1_CACHE_BYTES);
- if (allocsz > ESP_SKB_FRAG_MAXSIZE)
+ if (ALIGN(tailen, L1_CACHE_BYTES) > PAGE_SIZE ||
+ ALIGN(skb->data_len, L1_CACHE_BYTES) > PAGE_SIZE)
goto cow;
if (!skb_cloned(skb)) {