diff options
| -rw-r--r-- | meta/recipes-graphics/xorg-xserver/xserver-kdrive-1.7.99.2/fix-bogus-stack-variables.patch | 233 | ||||
| -rw-r--r-- | meta/recipes-graphics/xorg-xserver/xserver-kdrive_1.7.99.2.bb | 3 |
2 files changed, 235 insertions, 1 deletions
diff --git a/meta/recipes-graphics/xorg-xserver/xserver-kdrive-1.7.99.2/fix-bogus-stack-variables.patch b/meta/recipes-graphics/xorg-xserver/xserver-kdrive-1.7.99.2/fix-bogus-stack-variables.patch new file mode 100644 index 0000000000..b4e293facb --- /dev/null +++ b/meta/recipes-graphics/xorg-xserver/xserver-kdrive-1.7.99.2/fix-bogus-stack-variables.patch @@ -0,0 +1,233 @@ +From 6dae7f3792611aace1df0cca63bf50c50d93de43 Mon Sep 17 00:00:00 2001 +From: Chris Wilson <chris@chris-wilson.co.uk> +Date: Tue, 10 Aug 2010 18:30:20 +0000 +Subject: xace: Invalid reference to out-of-scope data. + +The callback data passed by reference to the hook was allocated on stack +within the scope of the case statement. The compiler is free to reuse +any of that stack space whilst making the function call so we may end up +passing garbage into the callback. + +References: + + Bug 18451 - Xorg server 1.5.2 SEGV during XFixesGetCursorImage() + https://bugs.freedesktop.org/show_bug.cgi?id=18451 + +v2: Drop the unrelated hunk that snuck in when ammending the commit +message. + +Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> +Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> +Signed-off-by: Keith Packard <keithp@keithp.com> + +Upstream-Status: accepted +--- +(limited to 'Xext/xace.c') + +diff --git a/Xext/xace.c b/Xext/xace.c +index e10d837..c757cad 100644 +--- a/Xext/xace.c ++++ b/Xext/xace.c +@@ -87,7 +87,18 @@ void XaceHookAuditEnd(ClientPtr ptr, int result) + */ + int XaceHook(int hook, ...) + { +- pointer calldata; /* data passed to callback */ ++ union { ++ XaceResourceAccessRec res; ++ XaceDeviceAccessRec dev; ++ XaceSendAccessRec send; ++ XaceReceiveAccessRec recv; ++ XaceClientAccessRec client; ++ XaceExtAccessRec ext; ++ XaceServerAccessRec server; ++ XaceScreenAccessRec screen; ++ XaceAuthAvailRec auth; ++ XaceKeyAvailRec key; ++ } u; + int *prv = NULL; /* points to return value from callback */ + va_list ap; /* argument list */ + va_start(ap, hook); +@@ -99,117 +110,86 @@ int XaceHook(int hook, ...) + */ + switch (hook) + { +- case XACE_RESOURCE_ACCESS: { +- XaceResourceAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.id = va_arg(ap, XID); +- rec.rtype = va_arg(ap, RESTYPE); +- rec.res = va_arg(ap, pointer); +- rec.ptype = va_arg(ap, RESTYPE); +- rec.parent = va_arg(ap, pointer); +- rec.access_mode = va_arg(ap, Mask); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_RESOURCE_ACCESS: ++ u.res.client = va_arg(ap, ClientPtr); ++ u.res.id = va_arg(ap, XID); ++ u.res.rtype = va_arg(ap, RESTYPE); ++ u.res.res = va_arg(ap, pointer); ++ u.res.ptype = va_arg(ap, RESTYPE); ++ u.res.parent = va_arg(ap, pointer); ++ u.res.access_mode = va_arg(ap, Mask); ++ u.res.status = Success; /* default allow */ ++ prv = &u.res.status; + break; +- } +- case XACE_DEVICE_ACCESS: { +- XaceDeviceAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.dev = va_arg(ap, DeviceIntPtr); +- rec.access_mode = va_arg(ap, Mask); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_DEVICE_ACCESS: ++ u.dev.client = va_arg(ap, ClientPtr); ++ u.dev.dev = va_arg(ap, DeviceIntPtr); ++ u.dev.access_mode = va_arg(ap, Mask); ++ u.dev.status = Success; /* default allow */ ++ prv = &u.dev.status; + break; +- } +- case XACE_SEND_ACCESS: { +- XaceSendAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.dev = va_arg(ap, DeviceIntPtr); +- rec.pWin = va_arg(ap, WindowPtr); +- rec.events = va_arg(ap, xEventPtr); +- rec.count = va_arg(ap, int); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_SEND_ACCESS: ++ u.send.client = va_arg(ap, ClientPtr); ++ u.send.dev = va_arg(ap, DeviceIntPtr); ++ u.send.pWin = va_arg(ap, WindowPtr); ++ u.send.events = va_arg(ap, xEventPtr); ++ u.send.count = va_arg(ap, int); ++ u.send.status = Success; /* default allow */ ++ prv = &u.send.status; + break; +- } +- case XACE_RECEIVE_ACCESS: { +- XaceReceiveAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.pWin = va_arg(ap, WindowPtr); +- rec.events = va_arg(ap, xEventPtr); +- rec.count = va_arg(ap, int); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_RECEIVE_ACCESS: ++ u.recv.client = va_arg(ap, ClientPtr); ++ u.recv.pWin = va_arg(ap, WindowPtr); ++ u.recv.events = va_arg(ap, xEventPtr); ++ u.recv.count = va_arg(ap, int); ++ u.recv.status = Success; /* default allow */ ++ prv = &u.recv.status; + break; +- } +- case XACE_CLIENT_ACCESS: { +- XaceClientAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.target = va_arg(ap, ClientPtr); +- rec.access_mode = va_arg(ap, Mask); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_CLIENT_ACCESS: ++ u.client.client = va_arg(ap, ClientPtr); ++ u.client.target = va_arg(ap, ClientPtr); ++ u.client.access_mode = va_arg(ap, Mask); ++ u.client.status = Success; /* default allow */ ++ prv = &u.client.status; + break; +- } +- case XACE_EXT_ACCESS: { +- XaceExtAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.ext = va_arg(ap, ExtensionEntry*); +- rec.access_mode = DixGetAttrAccess; +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_EXT_ACCESS: ++ u.ext.client = va_arg(ap, ClientPtr); ++ u.ext.ext = va_arg(ap, ExtensionEntry*); ++ u.ext.access_mode = DixGetAttrAccess; ++ u.ext.status = Success; /* default allow */ ++ prv = &u.ext.status; + break; +- } +- case XACE_SERVER_ACCESS: { +- XaceServerAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.access_mode = va_arg(ap, Mask); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_SERVER_ACCESS: ++ u.server.client = va_arg(ap, ClientPtr); ++ u.server.access_mode = va_arg(ap, Mask); ++ u.server.status = Success; /* default allow */ ++ prv = &u.server.status; + break; +- } + case XACE_SCREEN_ACCESS: +- case XACE_SCREENSAVER_ACCESS: { +- XaceScreenAccessRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.screen = va_arg(ap, ScreenPtr); +- rec.access_mode = va_arg(ap, Mask); +- rec.status = Success; /* default allow */ +- calldata = &rec; +- prv = &rec.status; ++ case XACE_SCREENSAVER_ACCESS: ++ u.screen.client = va_arg(ap, ClientPtr); ++ u.screen.screen = va_arg(ap, ScreenPtr); ++ u.screen.access_mode = va_arg(ap, Mask); ++ u.screen.status = Success; /* default allow */ ++ prv = &u.screen.status; + break; +- } +- case XACE_AUTH_AVAIL: { +- XaceAuthAvailRec rec; +- rec.client = va_arg(ap, ClientPtr); +- rec.authId = va_arg(ap, XID); +- calldata = &rec; ++ case XACE_AUTH_AVAIL: ++ u.auth.client = va_arg(ap, ClientPtr); ++ u.auth.authId = va_arg(ap, XID); + break; +- } +- case XACE_KEY_AVAIL: { +- XaceKeyAvailRec rec; +- rec.event = va_arg(ap, xEventPtr); +- rec.keybd = va_arg(ap, DeviceIntPtr); +- rec.count = va_arg(ap, int); +- calldata = &rec; ++ case XACE_KEY_AVAIL: ++ u.key.event = va_arg(ap, xEventPtr); ++ u.key.keybd = va_arg(ap, DeviceIntPtr); ++ u.key.count = va_arg(ap, int); + break; +- } +- default: { ++ default: + va_end(ap); + return 0; /* unimplemented hook number */ +- } + } + va_end(ap); + + /* call callbacks and return result, if any. */ +- CallCallbacks(&XaceHooks[hook], calldata); ++ CallCallbacks(&XaceHooks[hook], &u); + return prv ? *prv : Success; + } + +-- +cgit v0.9.0.2-2-gbebe diff --git a/meta/recipes-graphics/xorg-xserver/xserver-kdrive_1.7.99.2.bb b/meta/recipes-graphics/xorg-xserver/xserver-kdrive_1.7.99.2.bb index 360a0f3ab9..d90dc250e5 100644 --- a/meta/recipes-graphics/xorg-xserver/xserver-kdrive_1.7.99.2.bb +++ b/meta/recipes-graphics/xorg-xserver/xserver-kdrive_1.7.99.2.bb @@ -7,7 +7,7 @@ RDEPENDS_${PN} += "xkeyboard-config" EXTRA_OECONF += "--disable-glx" PE = "1" -PR = "r29" +PR = "r30" SRC_URI = "${XORG_MIRROR}/individual/xserver/xorg-server-${PV}.tar.bz2 \ file://extra-kmodes.patch \ @@ -20,6 +20,7 @@ SRC_URI = "${XORG_MIRROR}/individual/xserver/xorg-server-${PV}.tar.bz2 \ file://fix-newer-xorg-headers.patch \ file://crosscompile.patch \ file://error-address-work-around.patch \ + file://fix-bogus-stack-variables.patch \ file://nodolt.patch" # file://kdrive-evdev.patch # file://kdrive-use-evdev.patch |