Date: Sun, 26 Jan 2020 21:34:46 +0000 (UTC) From: Vincenzo Maffione <vmaffione@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r357159 - head/sys/dev/netmap Message-ID: <202001262134.00QLYkSI063353@repo.freebsd.org>
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Author: vmaffione Date: Sun Jan 26 21:34:46 2020 New Revision: 357159 URL: https://svnweb.freebsd.org/changeset/base/357159 Log: netmap_mem_unmap: fix NULL pointer dereference MFC after: 3 days Modified: head/sys/dev/netmap/netmap_mem2.c Modified: head/sys/dev/netmap/netmap_mem2.c ============================================================================== --- head/sys/dev/netmap/netmap_mem2.c Sun Jan 26 20:57:29 2020 (r357158) +++ head/sys/dev/netmap/netmap_mem2.c Sun Jan 26 21:34:46 2020 (r357159) @@ -1523,11 +1523,12 @@ static int netmap_mem_unmap(struct netmap_obj_pool *p, struct netmap_adapter *na) { int i, lim = p->objtotal; - struct netmap_lut *lut = &na->na_lut; + struct netmap_lut *lut; if (na == NULL || na->pdev == NULL) return 0; + lut = &na->na_lut; #if defined(__FreeBSD__) /* On FreeBSD mapping and unmapping is performed by the txsync * and rxsync routine, packet by packet. */
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