Bug#447836: segfault in xterm (reading resources database?)
Package: libx11-6
Version: 2:1.1.3-1
Severity: important
Hi, xterm is currently segfaulting on me. As far as I can tell the
segfault occurs inside libx11, so I'm posting this bug against that
rather than xterm (ccing Thomas Dickey so he's aware of the problem).
The bug would be grave against xterm, but only important against
libx11 since other programs work OK.
Actually think the bug may be shared. The backtrace suggests something
is wrong in /etc/X11/app-defaults/XTerm, but in that case libX11 (in
Xrm) should deal with it rather than crashing. I can't see anything
obviously wrong in /etc/X11/app-defaults/XTerm, I think it's the
Debian default. I'll attach it for reference.
The segfault occurred with libx11 2:1.0.3-7 from unstable. I saw the
new version 2:1.1.3-1 in experimental so I tried it, but the bug is
still there. I installed the -dbg package to get a backtrace Here is
the gdb output:
Starting program: /usr/bin/xterm
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb7b2f6b0 (LWP 25642)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7b2f6b0 (LWP 25642)]
0xb7de5eae in GetDatabase (db=0x80b0590,
str=0x87bc3d8 "! $XTermId: XTerm.ad,v 1.83 2007/03/18 22:41:40 tom
Exp $\n! $XFree86: xc/programs/xterm/XTerm.ad,v 3.37 2006/04/10
00:34:36 dickey Exp $\n\n*saveLines: 1024\n\n*SimpleMenu*BackingStore:
NotUseful\n*SimpleM"...,
filename=0xbf24a548 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1104
1104 ../../src/Xrm.c: No such file or directory.
in ../../src/Xrm.c
and here is the backtrace:
(gdb) bt
#0 0xb7de5eae in GetDatabase (db=0x80b0590,
str=0x87bc3d8 "! $XTermId: XTerm.ad,v 1.83 2007/03/18 22:41:40 tom
Exp $\n! $XFree86: xc/programs/xterm/XTerm.ad,v 3.37 2006/04/10
00:34:36 dickey Exp $\n\n*saveLines: 1024\n\n*SimpleMenu*BackingStore:
NotUseful\n*SimpleM"...,
filename=0xbf24a548 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1104
#1 0xb7de6b61 in GetDatabase (db=0x80b0590,
str=0x16 <Address 0x16 out of bounds>,
filename=0xbf24e908 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1658
#2 0xb7de6b61 in GetDatabase (db=0x80b0590,
str=0x16 <Address 0x16 out of bounds>,
filename=0xbf252cc8 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1658
... [repeats 480 times]
#480 0xb7de6b61 in GetDatabase (db=0x80b0590,
str=0x16 <Address 0x16 out of bounds>,
filename=0xbfa3ad48 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1658
#481 0xb7de6b61 in GetDatabase (db=0x80b0590,
str=0x16 <Address 0x16 out of bounds>,
filename=0xbfa3f108 "/etc/X11/app-defaults/XTerm", doall=1)
at ../../src/Xrm.c:1658
#482 0xb7de6b61 in GetDatabase (db=0x80b0590,
str=0x16 <Address 0x16 out of bounds>,
---Type <return> to continue, or q <return> to quit---
filename=0x80b3510 "/etc/X11/app-defaults/XTerm-color", doall=1)
at ../../src/Xrm.c:1658
#483 0xb7de73f9 in XrmCombineFileDatabase (
filename=0x80b3510 "/etc/X11/app-defaults/XTerm-color",
target=0xbfa444c8,
override=0) at ../../src/Xrm.c:1698
#484 0xb7ecfeeb in XtScreenDatabase () from /usr/lib/libXt.so.6
#485 0xb7ed022e in _XtDisplayInitialize () from /usr/lib/libXt.so.6
#486 0xb7ec76e3 in XtOpenDisplay () from /usr/lib/libXt.so.6
#487 0xb7ec78a5 in _XtAppInit () from /usr/lib/libXt.so.6
#488 0xb7ed0760 in XtOpenApplication () from /usr/lib/libXt.so.6
#489 0x08066cd4 in ?? ()
#490 0x08095400 in ?? ()
#491 0x080851c9 in ?? ()
#492 0x08091800 in ?? ()
#493 0x0000008a in ?? ()
#494 0xbfa44920 in ?? ()
#495 0xbfa449a4 in ?? ()
#496 0x080920a0 in ?? ()
#497 0xb7efcb40 in applicationShellWidgetClass () from
/usr/lib/libXt.so.6
#498 0x00000000 in ?? ()
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (990, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.22 (PREEMPT)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libx11-6 depends on:
ii libc6 2.6.1-5 GNU C Library: Shared libraries
ii libx11-data 2:1.1.1-1 X11 client-side library
ii libxcb-xlib0 1.0-3 X C Binding, Xlib/XCB interface li
ii libxcb1 1.0-3 X C Binding
ii x11-common 1:7.3+2 X Window System (X.Org) infrastruc
libx11-6 recommends no packages.
-- no debconf information
! $XTermId: XTerm.ad,v 1.83 2007/03/18 22:41:40 tom Exp $
! $XFree86: xc/programs/xterm/XTerm.ad,v 3.37 2006/04/10 00:34:36 dickey Exp $
*saveLines: 1024
*SimpleMenu*BackingStore: NotUseful
*SimpleMenu*menuLabel.font: -adobe-helvetica-bold-r-normal--*-120-*-*-*-*-iso8859-*
*SimpleMenu*menuLabel.vertSpace: 100
*SimpleMenu*HorizontalMargins: 16
*SimpleMenu*Sme.height: 16
*SimpleMenu*Cursor: left_ptr
*mainMenu.Label: Main Options
*mainMenu*toolbar*Label: Toolbar
*mainMenu*securekbd*Label: Secure Keyboard
*mainMenu*allowsends*Label: Allow SendEvents
*mainMenu*redraw*Label: Redraw Window
*mainMenu*logging*Label: Log to File
*mainMenu*print*Label: Print Window
*mainMenu*print-redir*Label: Redirect to Printer
*mainMenu*8-bit control*Label: 8-Bit Controls
*mainMenu*backarrow key*Label: Backarrow Key (BS/DEL)
*mainMenu*num-lock*Label: Alt/NumLock Modifiers
*mainMenu*alt-esc*Label: Alt Sends Escape
*mainMenu*meta-esc*Label: Meta Sends Escape
*mainMenu*delete-is-del*Label: Delete is DEL
*mainMenu*oldFunctionKeys*Label: Old Function-Keys
*mainMenu*sunFunctionKeys*Label: Sun Function-Keys
*mainMenu*sunKeyboard*Label: VT220 Keyboard
*mainMenu*hpFunctionKeys*Label: HP Function-Keys
*mainMenu*scoFunctionKeys*Label: SCO Function-Keys
*mainMenu*tcapFunctionKeys*Label: Termcap Function-Keys
*mainMenu*suspend*Label: Send STOP Signal
*mainMenu*continue*Label: Send CONT Signal
*mainMenu*interrupt*Label: Send INT Signal
*mainMenu*hangup*Label: Send HUP Signal
*mainMenu*terminate*Label: Send TERM Signal
*mainMenu*kill*Label: Send KILL Signal
*mainMenu*quit*Label: Quit
*vtMenu.Label: VT Options
*vtMenu*scrollbar*Label: Enable Scrollbar
*vtMenu*jumpscroll*Label: Enable Jump Scroll
*vtMenu*reversevideo*Label: Enable Reverse Video
*vtMenu*autowrap*Label: Enable Auto Wraparound
*vtMenu*reversewrap*Label: Enable Reverse Wraparound
*vtMenu*autolinefeed*Label: Enable Auto Linefeed
*vtMenu*appcursor*Label: Enable Application Cursor Keys
*vtMenu*appkeypad*Label: Enable Application Keypad
*vtMenu*scrollkey*Label: Scroll to Bottom on Key Press
*vtMenu*scrollttyoutput*Label: Scroll to Bottom on Tty Output
*vtMenu*allow132*Label: Allow 80/132 Column Switching
*vtMenu*selectToClipboard*Label: Select to Clipboard
*vtMenu*cursesemul*Label: Enable Curses Emulation
*vtMenu*visualbell*Label: Enable Visual Bell
*vtMenu*bellIsUrgent*Label: Enable Bell Urgency
*vtMenu*poponbell*Label: Enable Pop on Bell
*vtMenu*cursorblink*Label: Enable Blinking Cursor
*vtMenu*titeInhibit*Label: Enable Alternate Screen Switching
*vtMenu*activeicon*Label: Enable Active Icon
*vtMenu*softreset*Label: Do Soft Reset
*vtMenu*hardreset*Label: Do Full Reset
*vtMenu*clearsavedlines*Label: Reset and Clear Saved Lines
*vtMenu*tekshow*Label: Show Tek Window
*vtMenu*tekmode*Label: Switch to Tek Mode
*vtMenu*vthide*Label: Hide VT Window
*vtMenu*altscreen*Label: Show Alternate Screen
*fontMenu.Label: VT Fonts
*fontMenu*fontdefault*Label: Default
*fontMenu*font1*Label: Unreadable
*VT100.font1: nil2
*IconFont: nil2
*fontMenu*font2*Label: Tiny
*VT100.font2: 5x7
*fontMenu*font3*Label: Small
*VT100.font3: 6x10
*fontMenu*font4*Label: Medium
*VT100.font4: 7x13
*fontMenu*font5*Label: Large
*VT100.font5: 9x15
*fontMenu*font6*Label: Huge
*VT100.font6: 10x20
*fontMenu*fontescape*Label: Escape Sequence
*fontMenu*fontsel*Label: Selection
!fontescape and fontsel overridden by application
*fontMenu*font-linedrawing*Label: Line-Drawing Characters
*fontMenu*font-doublesize*Label: Doublesized Characters
*fontMenu*font-loadable*Label: VT220 Soft Fonts
*fontMenu*render-font*Label: TrueType Fonts
*fontMenu*utf8-mode*Label: UTF-8
*fontMenu*utf8-title*Label: UTF-8 Titles
*VT100.utf8Fonts.font2: -misc-fixed-medium-r-normal--8-80-75-75-c-50-iso10646-1
*VT100.utf8Fonts.font: -misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1
*VT100.utf8Fonts.font3: -misc-fixed-medium-r-normal--14-130-75-75-c-70-iso10646-1
*VT100.utf8Fonts.font4: -misc-fixed-medium-r-normal--13-120-75-75-c-80-iso10646-1
*VT100.utf8Fonts.font5: -misc-fixed-medium-r-normal--18-120-100-100-c-90-iso10646-1
*VT100.utf8Fonts.font6: -misc-fixed-medium-r-normal--20-200-75-75-c-100-iso10646-1
*tekMenu.Label: Tek Options
*tekMenu*tektextlarge*Label: Large Characters
*tekMenu*tektext2*Label: #2 Size Characters
*tekMenu*tektext3*Label: #3 Size Characters
*tekMenu*tektextsmall*Label: Small Characters
*tekMenu*tekpage*Label: PAGE
*tekMenu*tekreset*Label: RESET
*tekMenu*tekcopy*Label: COPY
*tekMenu*vtshow*Label: Show VT Window
*tekMenu*vtmode*Label: Switch to VT Mode
*tekMenu*tekhide*Label: Hide Tek Window
*tek4014*fontLarge: 9x15
*tek4014*font2: 8x13
*tek4014*font3: 6x13
*tek4014*fontSmall: 6x10
! Debian package customizations follow.
*backarrowKeyIsErase: true
*ptyInitialErase: true
! If xterm is built with a toolbar, the widget hierarchy looks like this,
! showing widget name / class names. The complete menu hierarchy is built
! at startup because it is needed to make the layout work for the menubar:
!
! xterm/XTerm
! form/Form
! menubar/Box
! mainMenuButton/MenuButton
! mainMenu/SimpleMenu
! menuLabel/SmeBSB
! toolbar/SmeBSB
! ...
! vtMenu/SimpleMenu
! menuLabel/SmeBSB
! scrollbar/SmeBSB
! ...
! fontMenu/SimpleMenu
! menuLabel/SmeBSB
! fontdefault/SmeBSB
! ...
! tekMenu/SimpleMenu
! menuLabel/SmeBSB
! fontdefault/SmeBSB
! ...
! vt100/VT100
! tektronix/TopLevelShell
! shellext/VendorShellExt
! tek4014/Tek4014
!
! If built without a toolbar, the widget hierarchy is simpler, because there
! is no form, and the popup menu widgets are created only when they are first
! used.
!
! xterm/XTerm
! shellext/VendorShellExt
! mainMenu/SimpleMenu
! menuLabel/SmeBSB
! ...
! ...
! vt100/VT100
! tektronix/TopLevelShell
! shellext/VendorShellExt
! tek4014/Tek4014
!
! A more complete list of the widget/class names can be obtained using editres
! to dump a file. Some widget names are not available until the corresponding
! menu has been created.
! These resources reduce space around the menubar, by eliminating padding in
! the enclosing form (Thickness) and the border of the Box which represents
! the menubar widget.
*form.Thickness: 0
*menubar.borderWidth: 0
! If we wanted to eliminate the border of the popup menus, we could do this
! instead, since they are children of the menubar:
!*menubar*borderWidth: 0
! Eliminate the border of the buttons in the menubar, so the only line around
! the text is for the highlighted button:
*MenuButton*borderWidth: 0
! Set a border for the menus to make them simpler to distinguish against the
! vt100 widget:
*SimpleMenu*borderWidth: 2
! Here is a pattern that is useful for double-clicking on a URL:
!*charClass: 33:48,35:48,37-38:48,43-47:48,58:48,61:48,63-64:48,95:48,126:48
!
! Alternatively,
!*on2Clicks: regex [[:alpha:]]+://([[:alnum:]!#+,./=?@_~-]|(%[[:xdigit:]][[:xdigit:]]))+
#include "XTerm"
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