francis.wang
4c86c082a2
Combine poky (Yocto scarthgap), meta-openembedded (scarthgap), and meta-openwrt into a single repository. Components: - poky/ Yocto core framework (BitBake + OE-Core) - meta-openembedded/ Community layers (meta-oe, meta-python, meta-networking) - meta-openwrt/ OpenWrt customization layer - setup-env.sh One-click build environment setup - README.md Project documentation
47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
From 0e4ed94952b255c04fe910f6a1d9c852878dcd64 Mon Sep 17 00:00:00 2001
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From: Olivier Fourdan <ofourdan@redhat.com>
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Date: Thu, 28 Nov 2024 14:09:04 +0100
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Subject: [PATCH] xkb: Fix buffer overflow in XkbChangeTypesOfKey()
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If XkbChangeTypesOfKey() is called with nGroups == 0, it will resize the
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key syms to 0 but leave the key actions unchanged.
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If later, the same function is called with a non-zero value for nGroups,
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this will cause a buffer overflow because the key actions are of the wrong
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size.
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To avoid the issue, make sure to resize both the key syms and key actions
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when nGroups is 0.
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CVE-2025-26597, ZDI-CAN-25683
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This vulnerability was discovered by:
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Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
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Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
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Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
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Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1828>
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Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/0e4ed949]
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CVE: CVE-2025-26597
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Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
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---
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xkb/XKBMisc.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/xkb/XKBMisc.c b/xkb/XKBMisc.c
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index abbfed90eb..fd180fad2c 100644
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--- a/xkb/XKBMisc.c
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+++ b/xkb/XKBMisc.c
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@@ -553,6 +553,7 @@ XkbChangeTypesOfKey(XkbDescPtr xkb,
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i = XkbSetNumGroups(i, 0);
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xkb->map->key_sym_map[key].group_info = i;
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XkbResizeKeySyms(xkb, key, 0);
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+ XkbResizeKeyActions(xkb, key, 0);
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return Success;
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}
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--
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GitLab
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