f85552aa45
Classic strlen/strcpy mistake of
foo = malloc(strlen(bar));
strcpy(foo, bar);
Testcase: valgrind Xephyr :1
==8591== Invalid write of size 1
==8591== at 0x4A0638F: strcpy (mc_replace_strmem.c:311)
==8591== by 0x605593: _XkbCopyGeom (xkbUtils.c:1994)
==8591== by 0x605973: XkbCopyKeymap (xkbUtils.c:2118)
==8591== by 0x6122B3: InitKeyboardDeviceStruct (xkbInit.c:560)
==8591== by 0x4472E2: CoreKeyboardProc (devices.c:577)
==8591== by 0x447162: ActivateDevice (devices.c:530)
==8591== by 0x4475D6: InitCoreDevices (devices.c:672)
==8591== by 0x4449EE: main (main.c:254)
==8591== Address 0x6f96505 is 0 bytes after a block of size 53 alloc'd
==8591== at 0x4A0515D: malloc (vg_replace_malloc.c:195)
==8591== by 0x6054B7: _XkbCopyGeom (xkbUtils.c:1980)
==8591== by 0x605973: XkbCopyKeymap (xkbUtils.c:2118)
==8591== by 0x6122B3: InitKeyboardDeviceStruct (xkbInit.c:560)
==8591== by 0x4472E2: CoreKeyboardProc (devices.c:577)
==8591== by 0x447162: ActivateDevice (devices.c:530)
==8591== by 0x4475D6: InitCoreDevices (devices.c:672)
==8591== by 0x4449EE: main (main.c:254)
Reported-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by-and-apologised-for: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit
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.. | ||
Makefile.am | ||
README.compiled | ||
XKBAlloc.c | ||
XKBGAlloc.c | ||
XKBMAlloc.c | ||
XKBMisc.c | ||
XKM_file_format.txt | ||
ddxBeep.c | ||
ddxCtrls.c | ||
ddxDevBtn.c | ||
ddxFakeMtn.c | ||
ddxKillSrv.c | ||
ddxLEDs.c | ||
ddxList.c | ||
ddxLoad.c | ||
ddxPrivate.c | ||
ddxVT.c | ||
maprules.c | ||
xkb.c | ||
xkb.h | ||
xkbAccessX.c | ||
xkbActions.c | ||
xkbDflts.h | ||
xkbEvents.c | ||
xkbInit.c | ||
xkbLEDs.c | ||
xkbPrKeyEv.c | ||
xkbSwap.c | ||
xkbUtils.c | ||
xkbfmisc.c | ||
xkbgeom.h | ||
xkbout.c | ||
xkbtext.c | ||
xkmread.c |
README.compiled
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.