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authorDavid S. Miller <davem@davemloft.net>2016-12-06 21:33:19 -0500
committerDavid S. Miller <davem@davemloft.net>2016-12-06 21:33:19 -0500
commitc63d352f053a788281eb90df0a71cd3a6b2c4040 (patch)
treece0c6f0993100d3d8feda1d9d487dfba4abc5bd0 /net/ipv4/ping.c
parent862b3d2090ae3d8b10bb4ee9275fd932bc4d0d44 (diff)
parentbc3913a5378cd0ddefd1dfec6917cc12eb23a946 (diff)
downloadop-kernel-dev-c63d352f053a788281eb90df0a71cd3a6b2c4040.zip
op-kernel-dev-c63d352f053a788281eb90df0a71cd3a6b2c4040.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv4/ping.c')
-rw-r--r--net/ipv4/ping.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index d11129f..5b2635e 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -657,6 +657,10 @@ int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
if (len > 0xFFFF)
return -EMSGSIZE;
+ /* Must have at least a full ICMP header. */
+ if (len < icmph_len)
+ return -EINVAL;
+
/*
* Check the flags.
*/
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