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-rw-r--r--net/netfilter/nfnetlink_osf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c
index 00db27dfd2ff..b0bc130947c9 100644
--- a/net/netfilter/nfnetlink_osf.c
+++ b/net/netfilter/nfnetlink_osf.c
@@ -71,6 +71,7 @@ static bool nf_osf_match_one(const struct sk_buff *skb,
int ttl_check,
struct nf_osf_hdr_ctx *ctx)
{
+ const __u8 *optpinit = ctx->optp;
unsigned int check_WSS = 0;
int fmatch = FMATCH_WRONG;
int foptsize, optnum;
@@ -160,6 +161,9 @@ static bool nf_osf_match_one(const struct sk_buff *skb,
}
}
+ if (fmatch != FMATCH_OK)
+ ctx->optp = optpinit;
+
return fmatch == FMATCH_OK;
}