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xen.8005
xsa178-0013-libxl-Have-READ_LIBXLDEV-use-libxl_...
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File xsa178-0013-libxl-Have-READ_LIBXLDEV-use-libxl_path-rather-than-.patch of Package xen.8005
References: bsc#979670 CVE-2016-4963 XSA-178 From 8e37e743331110b4fec5928689d74dceda5eb608 Mon Sep 17 00:00:00 2001 From: Ian Jackson <ian.jackson@eu.citrix.com> Date: Tue, 3 May 2016 15:40:18 +0100 Subject: [PATCH 13/21] libxl: Have READ_LIBXLDEV use libxl_path rather than be_path Fix the just-introduced bug in this macro: now it reads the trustworthy libxl_path. Change the variable name in the two functions (nic and channel) which use it. Shuffling the bump in the carpet along, we now introduce three new bugs: the three call sites pass a backend path where a frontend path is expected. No functional change. This is part of XSA-178. Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> --- tools/libxl/libxl.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) Index: xen-4.4.4-testing/tools/libxl/libxl.c =================================================================== --- xen-4.4.4-testing.orig/tools/libxl/libxl.c +++ xen-4.4.4-testing/tools/libxl/libxl.c @@ -3039,10 +3039,10 @@ static int libxl__device_nic_from_xs_be( libxl_device_nic_init(nic); -/* Utility to read /libxl or backend xenstore keys, from be_path */ +/* Utility to read /libxl xenstore keys, from libxl_path */ #define READ_LIBXLDEV(tgc, subpath) ({ \ rc = libxl__xs_read_checked(tgc, XBT_NULL, \ - GCSPRINTF("%s/" subpath, be_path), \ + GCSPRINTF("%s/" subpath, libxl_path), \ &tmp); \ if (rc) goto out; \ (char*)tmp; \
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