[Bug breakpoints/16392] New: info prog after failure to insert breakpoint can cause gdb crash

[Bug breakpoints/16392] New: info prog after failure to insert breakpoint can cause gdb crash

[i at ztrix dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=16392

            Bug ID: 16392
           Summary: info prog after failure to insert breakpoint can cause
                    gdb crash
           Product: gdb
           Version: 7.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
          Assignee: unassigned at sourceware dot org
          Reporter: i at ztrix dot me

Below are the steps to reproduce this bug. And this is the discussion thread
about how we found this bug(Thanks to longld):
https://github.com/longld/peda/issues/21 

:) ~ # gdb -n -q /bin/cat
Reading symbols from /usr/bin/cat...(no debugging symbols found)...done.
(gdb) tbreak *0xdeadbeef
Temporary breakpoint 1 at 0xdeadbeef
(gdb) r
Starting program: /bin/cat 
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7ffff7ffa000
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0xdeadbeef: Input/output error.

(gdb) info prog
thread.c:615: internal-error: is_thread_state: Assertion `tp' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) y
thread.c:615: internal-error: is_thread_state: Assertion `tp' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) y
Aborted (core dumped)

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug breakpoints/16392] info prog after failure to insert breakpoint can cause gdb crash

[i at ztrix dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=16392

--- Comment #1 from zTrix <i at ztrix dot me> ---
We have tested it on gdb 7.6.2(Archlinux x86-64), and gdb 7.4(Maybe Ubuntu I
think). Both produce this same output.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug breakpoints/16392] info prog after failure to insert breakpoint can cause gdb crash

[sergiodj at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16392

Sergio Durigan Junior <sergiodj at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |sergiodj at redhat dot com

--- Comment #2 from Sergio Durigan Junior <sergiodj at redhat dot com> ---
Proposed patch: <https://sourceware.org/ml/gdb-patches/2014-01/msg00709.html>

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug breakpoints/16392] info prog after failure to insert breakpoint can cause gdb crash

[sergiodj at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16392

Sergio Durigan Junior <sergiodj at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at sourceware dot org   |sergiodj at redhat dot com

-- 
You are receiving this mail because:
You are on the CC list for the bug.