svn commit: r338992 - stable/11/sys/dev/ffec
Andrey V. Elsukov
ae at FreeBSD.org
Fri Sep 28 10:02:48 UTC 2018
Author: ae
Date: Fri Sep 28 10:02:47 2018
New Revision: 338992
URL: https://svnweb.freebsd.org/changeset/base/338992
Log:
MFC r338857:
Fix possible NULL pointer dereference in ffec_alloc_mbufcl().
PR: 231514
Modified:
stable/11/sys/dev/ffec/if_ffec.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/ffec/if_ffec.c
==============================================================================
--- stable/11/sys/dev/ffec/if_ffec.c Fri Sep 28 00:01:45 2018 (r338991)
+++ stable/11/sys/dev/ffec/if_ffec.c Fri Sep 28 10:02:47 2018 (r338992)
@@ -799,7 +799,8 @@ 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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