diff options
author | Armin Kuster <akuster@mvista.com> | 2016-02-06 15:14:50 -0800 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2016-02-07 17:20:58 +0000 |
commit | 38f102a9271896a49aa32aacf2c2be3a14f51493 (patch) | |
tree | 66a018f88e9efc3803960305c680fae277302582 /meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch | |
parent | b45dcbadc1a51188ac6dead855e14a181a7bccd9 (diff) | |
download | openembedded-core-contrib-38f102a9271896a49aa32aacf2c2be3a14f51493.tar.gz |
qemu: Security fix CVE-2015-8504
CVE-2015-8504 Qemu: ui: vnc: avoid floating point exception
(From OE-Core rev: c622bdd7133d31d7fbefe87fb38187f0aea4b592)
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch')
-rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch b/meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch new file mode 100644 index 0000000000..2e6c8976eb --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2015-8504.patch @@ -0,0 +1,51 @@ +From 4c65fed8bdf96780735dbdb92a8bd0d6b6526cc3 Mon Sep 17 00:00:00 2001 +From: Prasad J Pandit <pjp@fedoraproject.org> +Date: Thu, 3 Dec 2015 18:54:17 +0530 +Subject: [PATCH] ui: vnc: avoid floating point exception + +While sending 'SetPixelFormat' messages to a VNC server, +the client could set the 'red-max', 'green-max' and 'blue-max' +values to be zero. This leads to a floating point exception in +write_png_palette while doing frame buffer updates. + +Reported-by: Lian Yihan <lianyihan@360.cn> +Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> +Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> +Signed-off-by: Peter Maydell <peter.maydell@linaro.org> + +Upstream-Status: Backport + +http://git.qemu.org/?p=qemu.git;a=commitdiff;h=4c65fed8bdf96780735dbdb92a8 + +CVE: CVE-2015-8504 +[Yocto # 9013] + +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + ui/vnc.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +Index: qemu-2.2.0/ui/vnc.c +=================================================================== +--- qemu-2.2.0.orig/ui/vnc.c ++++ qemu-2.2.0/ui/vnc.c +@@ -2036,15 +2036,15 @@ static void set_pixel_format(VncState *v + return; + } + +- vs->client_pf.rmax = red_max; ++ vs->client_pf.rmax = red_max ? red_max : 0xFF; + vs->client_pf.rbits = hweight_long(red_max); + vs->client_pf.rshift = red_shift; + vs->client_pf.rmask = red_max << red_shift; +- vs->client_pf.gmax = green_max; ++ vs->client_pf.gmax = green_max ? green_max : 0xFF; + vs->client_pf.gbits = hweight_long(green_max); + vs->client_pf.gshift = green_shift; + vs->client_pf.gmask = green_max << green_shift; +- vs->client_pf.bmax = blue_max; ++ vs->client_pf.bmax = blue_max ? blue_max : 0xFF; + vs->client_pf.bbits = hweight_long(blue_max); + vs->client_pf.bshift = blue_shift; + vs->client_pf.bmask = blue_max << blue_shift; |