From: Vijay Anusuri <vanus...@mvista.com> Upstream-Status: Backport from https://gitlab.freedesktop.org/xorg/xserver/-/commit/0e4ed949
Signed-off-by: Vijay Anusuri <vanus...@mvista.com> --- .../xserver-xorg/CVE-2025-26597.patch | 46 +++++++++++++++++++ .../xorg-xserver/xserver-xorg_21.1.8.bb | 1 + 2 files changed, 47 insertions(+) create mode 100644 meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2025-26597.patch diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2025-26597.patch b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2025-26597.patch new file mode 100644 index 0000000000..b0735d0b46 --- /dev/null +++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2025-26597.patch @@ -0,0 +1,46 @@ +From 0e4ed94952b255c04fe910f6a1d9c852878dcd64 Mon Sep 17 00:00:00 2001 +From: Olivier Fourdan <ofour...@redhat.com> +Date: Thu, 28 Nov 2024 14:09:04 +0100 +Subject: [PATCH] xkb: Fix buffer overflow in XkbChangeTypesOfKey() + +If XkbChangeTypesOfKey() is called with nGroups == 0, it will resize the +key syms to 0 but leave the key actions unchanged. + +If later, the same function is called with a non-zero value for nGroups, +this will cause a buffer overflow because the key actions are of the wrong +size. + +To avoid the issue, make sure to resize both the key syms and key actions +when nGroups is 0. + +CVE-2025-26597, ZDI-CAN-25683 + +This vulnerability was discovered by: +Jan-Niklas Sohn working with Trend Micro Zero Day Initiative + +Signed-off-by: Olivier Fourdan <ofour...@redhat.com> +Reviewed-by: Peter Hutterer <peter.hutte...@who-t.net> +Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1828> + +Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/0e4ed949] +CVE: CVE-2025-26597 +Signed-off-by: Vijay Anusuri <vanus...@mvista.com> +--- + xkb/XKBMisc.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/xkb/XKBMisc.c b/xkb/XKBMisc.c +index abbfed90eb..fd180fad2c 100644 +--- a/xkb/XKBMisc.c ++++ b/xkb/XKBMisc.c +@@ -553,6 +553,7 @@ XkbChangeTypesOfKey(XkbDescPtr xkb, + i = XkbSetNumGroups(i, 0); + xkb->map->key_sym_map[key].group_info = i; + XkbResizeKeySyms(xkb, key, 0); ++ XkbResizeKeyActions(xkb, key, 0); + return Success; + } + +-- +GitLab + diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb b/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb index ec6550e545..7c963e9fdf 100644 --- a/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb +++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg_21.1.8.bb @@ -26,6 +26,7 @@ SRC_URI += "file://0001-xf86pciBus.c-use-Intel-ddx-only-for-pre-gen4-hardwar.pat file://CVE-2025-26594-2.patch \ file://CVE-2025-26595.patch \ file://CVE-2025-26596.patch \ + file://CVE-2025-26597.patch \ " SRC_URI[sha256sum] = "38aadb735650c8024ee25211c190bf8aad844c5f59632761ab1ef4c4d5aeb152" -- 2.43.0
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