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Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Do not update the UDP checksum when it's zero, from Guillaume Nault.

2) Fix return of local variable in nf_osf, from Arnd Bergmann.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-04-30 18:07:16 -07:00
parent c778980a65 c165d57b55
commit b6f875a8d9
2 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/netfilter/nf_nat_proto.c
View File

@ -68,15 +68,13 @@ static bool udp_manip_pkt(struct sk_buff *skb,
enum nf_nat_manip_type maniptype)
{
struct udphdr *hdr;
bool do_csum;
if (skb_ensure_writable(skb, hdroff + sizeof(*hdr)))
return false;
hdr = (struct udphdr *)(skb->data + hdroff);
do_csum = hdr->check || skb->ip_summed == CHECKSUM_PARTIAL;
__udp_manip_pkt(skb, iphdroff, hdr, tuple, maniptype, !!hdr->check);
__udp_manip_pkt(skb, iphdroff, hdr, tuple, maniptype, do_csum);
return true;
}

12
net/netfilter/nfnetlink_osf.c
View File

@ -165,12 +165,12 @@ static bool nf_osf_match_one(const struct sk_buff *skb,
static const struct tcphdr *nf_osf_hdr_ctx_init(struct nf_osf_hdr_ctx *ctx,
const struct sk_buff *skb,
const struct iphdr *ip,
unsigned char *opts)
unsigned char *opts,
struct tcphdr *_tcph)
{
const struct tcphdr *tcp;
struct tcphdr _tcph;
tcp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(struct tcphdr), &_tcph);
tcp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(struct tcphdr), _tcph);
if (!tcp)
return NULL;
@ -205,10 +205,11 @@ nf_osf_match(const struct sk_buff *skb, u_int8_t family,
int fmatch = FMATCH_WRONG;
struct nf_osf_hdr_ctx ctx;
const struct tcphdr *tcp;
struct tcphdr _tcph;
memset(&ctx, 0, sizeof(ctx));
tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts);
tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts, &_tcph);
if (!tcp)
return false;
@ -265,10 +266,11 @@ bool nf_osf_find(const struct sk_buff *skb,
const struct nf_osf_finger *kf;
struct nf_osf_hdr_ctx ctx;
const struct tcphdr *tcp;
struct tcphdr _tcph;
memset(&ctx, 0, sizeof(ctx));
tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts);
tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts, &_tcph);
if (!tcp)
return false;