Date: Fri, 21 Sep 2018 13:44:05 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338857 - head/sys/dev/ffec Message-ID: <201809211344.w8LDi5gh066014@repo.freebsd.org>
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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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