xserver/xkb
Mikhail Dmitrichenko 5dfb435c1d xkb: fix potential buff overflow in XkbVModIndexText for XkbCFile format
len calculation and strncpy limit were off by one when prefixing
"vmod_" to the virtual modifier name. This could write the final
NULL one byte past the allocated buffer from tbGetBuffer().

Use proper allocation len for prefix to avoid writing out-of-bounds.

Found by Linux Verification Center (linuxtesting.org) with SVACE

Signed-off-by: Mikhail Dmitrichenko <m.dmitrichenko222@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2175>
2026-04-15 23:42:25 +00:00
..
ddxBeep.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxCtrls.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxKillSrv.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxLEDs.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxLoad.c xkb: handle -Wanalyzer-null-dereference in XkbDDXLoadKeymapByNames() 2026-04-11 18:12:24 +00:00
ddxPrivate.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
ddxVT.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
maprules.c xkb: drop defining XKBSRV_NEED_FILE_FUNCS 2026-01-19 12:32:18 -08:00
meson.build Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
README.compiled Strip trailing whitespace from source files 2026-01-25 10:40:02 -08:00
xkb-procs.h xkb: rename xkb.h to xkb-procs.h 2022-07-08 14:27:04 +00:00
xkb.c xkb: Add more _XkbCheckRequestBounds() 2026-04-14 14:43:53 +02:00
xkbAccessX.c treewide: fix typos 2026-03-14 16:52:19 +00:00
xkbActions.c xkb: Fix locked/latched indicator desync across multiple keyboards 2026-02-01 17:53:18 -08:00
XKBAlloc.c xkb: ensure XkbAllocNames sets num_rg to 0 on allocation failure 2026-01-25 10:40:01 -08:00
xkbDflts.h Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xkbEvents.c xkb: Free the XKB resource when freeing XkbInterest 2026-01-25 10:40:03 -08:00
xkbfmisc.c xkb: drop ununsed XkbNameMatchesPattern() 2026-01-19 12:32:25 -08:00
XKBGAlloc.c xkb: fix incorrect size check when growing doodads in a section 2026-04-15 08:53:34 +00:00
xkbgeom.h Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
xkbInit.c xkb: plug memory leaks in InitKeyboardDeviceStructInternal() error paths 2026-04-11 18:12:24 +00:00
xkbLEDs.c Fix typos 2026-03-03 06:50:01 -03:00
XKBMAlloc.c xkb: Check that needed is > 0 in XkbResizeKeyActions 2026-01-25 10:40:01 -08:00
XKBMisc.c xkb: Fix buffer overflow in XkbChangeTypesOfKey() 2026-01-25 10:40:01 -08:00
xkbout.c xkb: drop defining XKBSRV_NEED_FILE_FUNCS 2026-01-19 12:32:18 -08:00
xkbPrKeyEv.c xwayland: Don't run key behaviors and actions 2026-01-25 10:39:58 -08:00
xkbSwap.c xkb: drop swapping request length fields 2026-01-25 10:39:58 -08:00
xkbtext.c xkb: fix potential buff overflow in XkbVModIndexText for XkbCFile format 2026-04-15 23:42:25 +00:00
xkbUtils.c xkb: Fix key type without level names in XkbCopyKeymap 2026-02-14 13:06:31 -08:00
XKM_file_format.txt Fix typos 2026-03-03 06:50:01 -03:00
xkmread.c xkb: make XkbInternAtom() static 2026-01-25 10:39:53 -08:00

The X server uses this directory to store the compiled version of the
current keymap and/or any scratch keymaps used by clients.  The X server
or some other tool might destroy or replace the files in this directory,
so it is not a safe place to store compiled keymaps for long periods of
time.  The default keymap for any server is usually stored in:
     X<num>-default.xkm
where <num> is the display number of the server in question, which makes
it possible for several servers *on the same host* to share the same
directory.

Unless the X server is modified, sharing this directory between servers on
different hosts could cause problems.