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| author |   David S. Miller <davem@davemloft.net> | 2016-03-19 21:05:24 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-19 21:05:24 -0400 |
| commit | c78a85a8430e35aecd53e190a2f6b999062b1037 (patch) | |
| tree | fbd69827579db437492fb77b5faa53814114bed3 /net/ax25/ax25_ip.c | |
| parent | sctp: fix copying more bytes than expected in sctp_add_bind_addr (diff) | |
| parent | Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm (diff) | |
| download | linux-dev-c78a85a8430e35aecd53e190a2f6b999062b1037.tar.xz linux-dev-c78a85a8430e35aecd53e190a2f6b999062b1037.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'net/ax25/ax25_ip.c')
| -rw-r--r-- | net/ax25/ax25_ip.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c index b563a3f5f2a8..2fa3be965101 100644 --- a/net/ax25/ax25_ip.c +++ b/net/ax25/ax25_ip.c @@ -228,8 +228,23 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb) } #endif +static bool ax25_validate_header(const char *header, unsigned int len) +{ + ax25_digi digi; + + if (!len) + return false; + + if (header[0]) + return true; + + return ax25_addr_parse(header + 1, len - 1, NULL, NULL, &digi, NULL, + NULL); +} + const struct header_ops ax25_header_ops = { .create = ax25_hard_header, + .validate = ax25_validate_header, }; EXPORT_SYMBOL(ax25_header_ops); |