diff options
| author |   Patrick McHardy <kaber@trash.net> | 2007-01-30 14:25:24 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2007-01-30 14:25:24 -0800 |
| commit | adcb4711101dfef89d473f64a913089d303962ae (patch) | |
| tree | c582cac3adbfd25fe09f91f9a62cfdbcfcb62714 /net/ipv4 | |
| parent | [NETFILTER]: SIP conntrack: fix skipping over user info in SIP headers (diff) | |
| download | linux-dev-adcb4711101dfef89d473f64a913089d303962ae.tar.xz linux-dev-adcb4711101dfef89d473f64a913089d303962ae.zip | |
[NETFILTER]: SIP conntrack: fix out of bounds memory access
When checking for an @-sign in skp_epaddr_len, make sure not to
run over the packet boundaries.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/netfilter/ip_conntrack_sip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_sip.c b/net/ipv4/netfilter/ip_conntrack_sip.c index 571d27e20910..11c588a10e6b 100644 --- a/net/ipv4/netfilter/ip_conntrack_sip.c +++ b/net/ipv4/netfilter/ip_conntrack_sip.c @@ -292,7 +292,7 @@ static int skp_epaddr_len(const char *dptr, const char *limit, int *shift) dptr++; } - if (*dptr == '@') { + if (dptr <= limit && *dptr == '@') { dptr++; (*shift)++; } else |