diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-0394.patch')
-rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-0394.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-0394.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-0394.patch new file mode 100644 index 000000000..25ffd9af5 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-0394.patch @@ -0,0 +1,43 @@ +From cb3e9864cdbe35ff6378966660edbcbac955fe17 Mon Sep 17 00:00:00 2001 +From: Herbert Xu <herbert@gondor.apana.org.au> +Date: Tue, 10 Jan 2023 08:59:06 +0800 +Subject: ipv6: raw: Deduct extension header length in + rawv6_push_pending_frames + +The total cork length created by ip6_append_data includes extension +headers, so we must exclude them when comparing them against the +IPV6_CHECKSUM offset which does not include extension headers. + +Reported-by: Kyle Zeng <zengyhkyle@gmail.com> +Fixes: 357b40a18b04 ("[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory") +Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + net/ipv6/raw.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c +index a06a9f847db5c..ada087b50541a 100644 +--- a/net/ipv6/raw.c ++++ b/net/ipv6/raw.c +@@ -505,6 +505,7 @@ csum_copy_err: + static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, + struct raw6_sock *rp) + { ++ struct ipv6_txoptions *opt; + struct sk_buff *skb; + int err = 0; + int offset; +@@ -522,6 +523,9 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, + + offset = rp->offset; + total_len = inet_sk(sk)->cork.base.length; ++ opt = inet6_sk(sk)->cork.opt; ++ total_len -= opt ? opt->opt_flen : 0; ++ + if (offset >= total_len - 1) { + err = -EINVAL; + ip6_flush_pending_frames(sk); +-- +cgit + |