Author: ae
Date: Fri Sep 21 13:44:05 2018
New Revision: 338857
URL: https://svnweb.freebsd.org/changeset/base/338857
Log:
Fix possible NULL pointer dereference in ffec_alloc_mbufcl().
PR: 231514
Approved by: re (kib)
MFC after: 1 week
Modified:
head/sys/dev/ffec/if_ffec.c
Modified: head/sys/dev/ffec/if_ffec.c
==============================================================================
--- head/sys/dev/ffec/if_ffec.c Fri Sep 21 13:43:06 2018 (r338856)
+++ head/sys/dev/ffec/if_ffec.c Fri Sep 21 13:44:05 2018 (r338857)
@@ -801,7 +801,8 @@ ffec_alloc_mbufcl(struct ffec_softc *sc)
struct mbuf *m;
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
- m->m_pkthdr.len = m->m_len = m->m_ext.ext_size;
+ if (m != NULL)
+ m->m_pkthdr.len = m->m_len = m->m_ext.ext_size;
return (m);
}
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