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| author | Jonathan Lemon <jonathan.lemon@gmail.com> | 2019-07-26 12:16:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-27 14:23:48 -0700 |
| commit | 280b0b8e89ade4277147e598d5806de12bff5fbc (patch) | |
| tree | 5773032b595b66592c56369a6e15726d5fc2a66e /net/ipv6 | |
| parent | edcde3ee579bcac75ceb47758f18d2b1d26a39f8 (diff) | |
| download | linux-280b0b8e89ade4277147e598d5806de12bff5fbc.tar.bz2 | |
ipv6: remove printk
ipv6_find_hdr() prints a non-rate limited error message
when it cannot find an ipv6 header at a specific offset.
This could be used as a DoS, so just remove it.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/exthdrs_core.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c index b358f1a4dd08..da46c4284676 100644 --- a/net/ipv6/exthdrs_core.c +++ b/net/ipv6/exthdrs_core.c @@ -197,10 +197,8 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, struct ipv6hdr _ip6, *ip6; ip6 = skb_header_pointer(skb, *offset, sizeof(_ip6), &_ip6); - if (!ip6 || (ip6->version != 6)) { - printk(KERN_ERR "IPv6 header not found\n"); + if (!ip6 || (ip6->version != 6)) return -EBADMSG; - } start = *offset + sizeof(struct ipv6hdr); nexthdr = ip6->nexthdr; } |