Author: shurd
Date: Fri Dec 8 19:50:06 2017
New Revision: 326706
URL: https://svnweb.freebsd.org/changeset/base/326706
Log:
Free mbuf chain when m_dup fails
Fix memory leak where mbuf chain wasn't free()d if iflib_ether_pad()
has a failure in m_dup().
Reported by: "Ryan Stone" <ryst...@gmail.com>
Sponsored by: Limelight Networks
Modified:
head/sys/net/iflib.c
Modified: head/sys/net/iflib.c
==============================================================================
--- head/sys/net/iflib.c Fri Dec 8 19:26:25 2017 (r326705)
+++ head/sys/net/iflib.c Fri Dec 8 19:50:06 2017 (r326706)
@@ -3125,6 +3125,7 @@ iflib_ether_pad(device_t dev, struct mbuf **m_head, ui
if (!M_WRITABLE(*m_head)) {
new_head = m_dup(*m_head, M_NOWAIT);
if (new_head == NULL) {
+ m_freem(*m_head);
device_printf(dev, "cannot pad short frame, m_dup()
failed");
return ENOMEM;
}
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