bugPSPP - Bugs: bug #21397, read error in filter command


bug #21397: read error in filter command

Submitted by:  John Darrington <jmd>
Submitted on:  Tue 23 Oct 2007 01:18:33 PM UTC  
Category:  Other Severity:  7 - Major
Status:  Fixed Assigned to:  None
Open/Closed:  Closed Release:  Before 0.6.0
Effort:  0.00

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Sat 27 Oct 2007 07:12:52 AM UTC, comment #4: 

Thanks Jason.  I'm committing this, and closing both items.

John Darrington <jmd>
Project Administrator
Fri 26 Oct 2007 02:02:25 PM UTC, comment #3: 

Works on OBSD, and it seems to have fixed bug 21330.

Jason H Stover <jstover>
Project Member
Fri 26 Oct 2007 10:50:28 AM UTC, comment #2: 

I think the attached patch should fix the problem.

(file #14217)

John Darrington <jmd>
Project Administrator
Thu 25 Oct 2007 08:45:25 AM UTC, comment #1: 

The attached file seems to trigger this problem and crash.  I strongly suspect this is also the cause of #21330

(file #14203)

John Darrington <jmd>
Project Administrator
Tue 23 Oct 2007 01:18:33 PM UTC, original submission:  

Valgrind shows the following error when running tests/command/filter.sh

==13206== Invalid read of size 4
==13206==    at 0x80F5B5F: dict_var_changed (dictionary.c:1168)
==13206==    by 0x81088DD: var_set_leave (variable.c:784)
==13206==    by 0x8053080: lvalue_finalize (compute.c:408)
==13206==    by 0x80526F1: cmd_compute (compute.c:101)
==13206==    by 0x804F2DD: do_parse_command (command.c:235)
==13206==    by 0x804F02E: cmd_parse_in_state (command.c:148)
==13206==    by 0x804F112: cmd_parse (command.c:165)
==13206==    by 0x804D83A: main (main.c:124)
==13206==  Address 0x4755958 is 64 bytes inside a block of size 72 free'd
==13206==    at 0x4023FA5: free (vg_replace_malloc.c:233)
==13206==    by 0x80F3A0D: dict_destroy (dictionary.c:230)
==13206==    by 0x80FB33C: proc_cancel_temporary_transformations (procedure.c:490)
==13206==    by 0x80FAEB1: proc_commit (procedure.c:313)
==13206==    by 0x80A10C6: cmd_list (list.q:250)
==13206==    by 0x804F2DD: do_parse_command (command.c:235)
==13206==    by 0x804F02E: cmd_parse_in_state (command.c:148)
==13206==    by 0x804F112: cmd_parse (command.c:165)
==13206==    by 0x804D83A: main (main.c:124)

John Darrington <jmd>
Project Administrator


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:

Attached Files
file #14217:  vardict-bug.patch added by jmd (3KiB - text/x-diff)
file #14203:  crash.sps added by jmd (185B - application/octet-stream)


Depends on the following items: None found

Items that depend on this one: None found


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    Follow 7 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2007-10-27 jmd StatusNone => Fixed
        Open/ClosedOpen => Closed
    2007-10-26 jmd Attached File- => Added vardict-bug.patch, #14217
    2007-10-25 jmd Attached File- => Added crash.sps, #14203
        CategoryNone => Other
        Severity5 - Average => 7 - Major
        ReleaseNone => Before 0.6.0

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