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| author | Jakub Kicinski <kuba@kernel.org> | 2024-06-27 14:25:00 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-11 12:47:11 +0200 |
| commit | 31f03bb04146c1c6df6c03e9f45401f5f5a985d3 (patch) | |
| tree | 67aee49f98e3768d835d204f96284221d4ab109d /net | |
| parent | f8b7bd500d89a401167d85dbe78882fbabc7d2ad (diff) | |
| download | linux-31f03bb04146c1c6df6c03e9f45401f5f5a985d3.tar.gz linux-31f03bb04146c1c6df6c03e9f45401f5f5a985d3.tar.bz2 linux-31f03bb04146c1c6df6c03e9f45401f5f5a985d3.zip | |
tcp_metrics: validate source addr length
[ Upstream commit 66be40e622e177316ae81717aa30057ba9e61dff ]
I don't see anything checking that TCP_METRICS_ATTR_SADDR_IPV4
is at least 4 bytes long, and the policy doesn't have an entry
for this attribute at all (neither does it for IPv6 but v6 is
manually validated).
Reviewed-by: Eric Dumazet <edumazet@google.com>
Fixes: 3e7013ddf55a ("tcp: metrics: Allow selective get/del of tcp-metrics based on src IP")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp_metrics.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index a7364ff8b558..a4e03a7a2c03 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -619,6 +619,7 @@ static const struct nla_policy tcp_metrics_nl_policy[TCP_METRICS_ATTR_MAX + 1] = [TCP_METRICS_ATTR_ADDR_IPV4] = { .type = NLA_U32, }, [TCP_METRICS_ATTR_ADDR_IPV6] = { .type = NLA_BINARY, .len = sizeof(struct in6_addr), }, + [TCP_METRICS_ATTR_SADDR_IPV4] = { .type = NLA_U32, }, /* Following attributes are not received for GET/DEL, * we keep them for reference */ |