- Update to version 22.1.4
* xwayland: Aggregate scroll axis events to fix kinetic scrolling * Forbid server grabs by non-WM on *rootless* XWayland * xkb: Avoid length-check failure on empty strings. * ci: remove redundant slash in libxcvt repository url * dix: Skip more code in SetRootClip for ROOT_CLIP_INPUT_ONLY * dix: Fix overzealous caching of ResourceClientBits() * xwayland: Prevent Xserver grabs with rootless * xwayland: Delay wl_surface destruction * build: Bump wayland requirement to 1.18 * xwayland: set tag on our surfaces * xwayland: Clear the "xwl-window" tag on unrealize * xwayland: correct the type for the discrete scroll events * xkb: fix some possible memleaks in XkbGetKbdByName * xkb: length-check XkbGetKbdByName before accessing the fields * xkb: length-check XkbListComponents before accessing the fields * xkb: proof GetCountedString against request length attacks - supersedes security patches: * U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch * U_xkb-proof-GetCountedString-against-request-length-at.patch OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xwayland?expand=0&rev=33
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From 18f91b950e22c2a342a4fbc55e9ddf7534a707d2 Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Wed, 13 Jul 2022 11:23:09 +1000
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Subject: [PATCH] xkb: fix some possible memleaks in XkbGetKbdByName
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GetComponentByName returns an allocated string, so let's free that if we
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fail somewhere.
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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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---
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xkb/xkb.c | 26 ++++++++++++++++++++------
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1 file changed, 20 insertions(+), 6 deletions(-)
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Index: xwayland-22.1.3/xkb/xkb.c
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===================================================================
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--- xwayland-22.1.3.orig/xkb/xkb.c
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+++ xwayland-22.1.3/xkb/xkb.c
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@@ -5941,18 +5941,32 @@ ProcXkbGetKbdByName(ClientPtr client)
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xkb = dev->key->xkbInfo->desc;
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status = Success;
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str = (unsigned char *) &stuff[1];
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- if (GetComponentSpec(&str, TRUE, &status)) /* keymap, unsupported */
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- return BadMatch;
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+ {
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+ char *keymap = GetComponentSpec(&str, TRUE, &status); /* keymap, unsupported */
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+ if (keymap) {
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+ free(keymap);
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+ return BadMatch;
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+ }
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+ }
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names.keycodes = GetComponentSpec(&str, TRUE, &status);
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names.types = GetComponentSpec(&str, TRUE, &status);
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names.compat = GetComponentSpec(&str, TRUE, &status);
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names.symbols = GetComponentSpec(&str, TRUE, &status);
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names.geometry = GetComponentSpec(&str, TRUE, &status);
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- if (status != Success)
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+ if (status == Success) {
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+ len = str - ((unsigned char *) stuff);
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+ if ((XkbPaddedSize(len) / 4) != stuff->length)
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+ status = BadLength;
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+ }
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+
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+ if (status != Success) {
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+ free(names.keycodes);
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+ free(names.types);
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+ free(names.compat);
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+ free(names.symbols);
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+ free(names.geometry);
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return status;
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- len = str - ((unsigned char *) stuff);
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- if ((XkbPaddedSize(len) / 4) != stuff->length)
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- return BadLength;
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+ }
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CHK_MASK_LEGAL(0x01, stuff->want, XkbGBN_AllComponentsMask);
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CHK_MASK_LEGAL(0x02, stuff->need, XkbGBN_AllComponentsMask);
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@ -1,31 +0,0 @@
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From 11beef0b7f1ed290348e45618e5fa0d2bffcb72e Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Tue, 5 Jul 2022 12:06:20 +1000
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Subject: [PATCH] xkb: proof GetCountedString against request length attacks
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GetCountedString did a check for the whole string to be within the
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request buffer but not for the initial 2 bytes that contain the length
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field. A swapped client could send a malformed request to trigger a
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swaps() on those bytes, writing into random memory.
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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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---
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xkb/xkb.c | 5 +++++
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1 file changed, 5 insertions(+)
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Index: xwayland-22.1.3/xkb/xkb.c
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===================================================================
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--- xwayland-22.1.3.orig/xkb/xkb.c
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+++ xwayland-22.1.3/xkb/xkb.c
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@@ -5138,6 +5138,11 @@ _GetCountedString(char **wire_inout, Cli
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CARD16 len;
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wire = *wire_inout;
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+
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+ if (client->req_len <
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+ bytes_to_int32(wire + 2 - (char *) client->requestBuffer))
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+ return BadValue;
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+
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len = *(CARD16 *) wire;
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if (client->swapped) {
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swaps(&len);
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@ -1,3 +0,0 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:a712eb7bce32cd934df36814b5dd046aa670899c16fe98f2afb003578f86a1c5
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size 1272440
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Binary file not shown.
3
xwayland-22.1.4.tar.xz
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3
xwayland-22.1.4.tar.xz
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version https://git-lfs.github.com/spec/v1
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oid sha256:5c39bdd77444c3fa7a0e2ef317ae69ddde89a901dc8914dbc8eac39a9313512a
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size 1273552
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BIN
xwayland-22.1.4.tar.xz.sig
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BIN
xwayland-22.1.4.tar.xz.sig
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@ -1,3 +1,27 @@
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-------------------------------------------------------------------
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Thu Oct 20 11:50:17 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>
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- Update to version 22.1.4
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* xwayland: Aggregate scroll axis events to fix kinetic scrolling
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* Forbid server grabs by non-WM on *rootless* XWayland
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* xkb: Avoid length-check failure on empty strings.
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* ci: remove redundant slash in libxcvt repository url
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* dix: Skip more code in SetRootClip for ROOT_CLIP_INPUT_ONLY
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* dix: Fix overzealous caching of ResourceClientBits()
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* xwayland: Prevent Xserver grabs with rootless
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* xwayland: Delay wl_surface destruction
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* build: Bump wayland requirement to 1.18
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* xwayland: set tag on our surfaces
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* xwayland: Clear the "xwl-window" tag on unrealize
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* xwayland: correct the type for the discrete scroll events
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* xkb: fix some possible memleaks in XkbGetKbdByName
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* xkb: length-check XkbGetKbdByName before accessing the fields
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* xkb: length-check XkbListComponents before accessing the fields
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* xkb: proof GetCountedString against request length attacks
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- supersedes security patches:
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* U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch
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* U_xkb-proof-GetCountedString-against-request-length-at.patch
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-------------------------------------------------------------------
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-------------------------------------------------------------------
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Wed Oct 19 11:19:40 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>
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Wed Oct 19 11:19:40 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>
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@ -24,7 +24,7 @@
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%endif
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%endif
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Name: xwayland
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Name: xwayland
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Version: 22.1.3
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Version: 22.1.4
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Release: 0
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Release: 0
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URL: http://xorg.freedesktop.org/
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URL: http://xorg.freedesktop.org/
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Summary: X
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Summary: X
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@ -33,8 +33,6 @@ Group: System/X11/Servers/XF86_4
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Source0: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz
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Source0: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz
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Source1: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz.sig
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Source1: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz.sig
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Source2: xwayland.keyring
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Source2: xwayland.keyring
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Patch1204412: U_xkb-proof-GetCountedString-against-request-length-at.patch
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Patch1204416: U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch
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BuildRequires: meson
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BuildRequires: meson
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BuildRequires: ninja
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BuildRequires: ninja
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BuildRequires: pkgconfig
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BuildRequires: pkgconfig
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