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Free the right fragment (Cy Schubert @ FreeBSD). This will cause use after free 

issues and eventually panic.
This commit is contained in:
christos 2017-04-23 19:09:29 +00:00
parent 8c06a4888e
commit f5c70f34c6
1 changed files with 3 additions and 3 deletions
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6
sys/external/bsd/ipf/netinet/ip_frag.c vendored
View File

@ -1,4 +1,4 @@
/* $NetBSD: ip_frag.c,v 1.4 2017/01/13 15:17:00 christos Exp $ */
/* $NetBSD: ip_frag.c,v 1.5 2017/04/23 19:09:29 christos Exp $ */
/*
* Copyright (C) 2012 by Darren Reed.
@ -87,7 +87,7 @@ struct file;
#if !defined(lint)
#if defined(__NetBSD__)
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ip_frag.c,v 1.4 2017/01/13 15:17:00 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: ip_frag.c,v 1.5 2017/04/23 19:09:29 christos Exp $");
#else
static const char sccsid[] = "@(#)ip_frag.c 1.11 3/24/96 (C) 1993-2000 Darren Reed";
static const char rcsid[] = "@(#)Id: ip_frag.c,v 1.1.1.2 2012/07/22 13:45:17 darrenr Exp";
@ -468,7 +468,7 @@ ipfr_frag_new(
IPFR_CMPSZ)) {
RWLOCK_EXIT(lock);
FBUMPD(ifs_exists);
KFREE(fra);
KFREE(fran);
return NULL;
}