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authorDaniel Borkmann <dborkman@redhat.com>2013-09-03 18:24:02 +0200
committerDavid S. Miller <davem@davemloft.net>2013-09-04 00:27:28 -0400
commitcc8c6c1b21c9b1e0f1e89428c07c7c52435cba0c (patch)
tree27f65c0861fc098f030f4411f20a32e17a2cb83a /net
parentqlcnic: remove a stray semicolon (diff)
downloadlinux-dev-cc8c6c1b21c9b1e0f1e89428c07c7c52435cba0c.tar.xz
linux-dev-cc8c6c1b21c9b1e0f1e89428c07c7c52435cba0c.zip
net: tcp_probe: adapt tbuf size for recent changes
With recent changes in tcp_probe module (e.g. f925d0a62d ("net: tcp_probe: add IPv6 support")) we also need to take into account that tbuf needs to be updated as format string will be further expanded. tbuf sits on the stack in tcpprobe_read() function that is invoked when user space reads procfs file /proc/net/tcpprobe, hence not fast path as in jtcp_rcv_established(). Having a size similarly as in sctp_probe module of 256 bytes is fully sufficient for that, we need theoretical maximum of 252 bytes otherwise we could get truncated. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_probe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 622a4377b397..1f6aa543b64e 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -218,7 +218,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
return -EINVAL;
while (cnt < len) {
- char tbuf[164];
+ char tbuf[256];
int width;
/* Wait for data in buffer */