bugThe FreeType Project - Bugs: bug #48901, regression: timeout in...


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bug #48901: regression: timeout in tt_cmap4_char_map_binary

Submitter:  Kostya Serebryany <kcc>
Submitted:  Thu 25 Aug 2016 04:25:40 PM UTC
Severity:  3 - Normal Item Group:  None
Status:  Fixed Privacy:  Public
Assigned to:  wl Open/Closed:  Closed
Planned Release:  None

Thu 25 Aug 2016 05:50:27 PM UTC, comment #3: 

Thanks, should be fixed now.

Werner LEMBERG <wl>
Group administrator
Thu 25 Aug 2016 05:26:45 PM UTC, comment #2: 

it might be the contents of the file, not the name.
attaching gzip-ed.

(file #38355)

Kostya Serebryany <kcc>
Group Member
Thu 25 Aug 2016 05:19:57 PM UTC, comment #1: 

Uhm oh, Savannah choked on the attachment's file name – I get a 404 error.  Please upload it again with a simpler name.

Werner LEMBERG <wl>
Group administrator
Thu 25 Aug 2016 04:25:40 PM UTC, original submission:  

found by libFuzzer bot, looks like a fresh regression.

    #4 0x676559 in tt_cmap4_char_map_binary src/sfnt/ttcmap.c:1254:16
    #5 0x53cc94 in FT_Get_Next_Char src/base/ftobjs.c:3472:18
    #6 0x6c99f1 in af_face_globals_compute_style_coverage src/autofit/afglobal.c:201:24
    #7 0x6c99f1 in af_face_globals_new src/autofit/afglobal.c:371
    #8 0x6b052e in af_loader_reset src/autofit/afloader.c:56:15
    #9 0x6b052e in af_loader_load_glyph src/autofit/afloader.c:495
    #10 0x6b052e in af_autofitter_load_glyph src/autofit/afmodule.c:541
    #11 0x520f52 in FT_Load_Glyph src/base/ftobjs.c:733:19
    #12 0x4f5cb7 in LLVMFuzzerTestOneInput (

Kostya Serebryany <kcc>
Group Member


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

Attached Files


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
    2016-08-25 wl StatusNeed Info Fixed
        Open/ClosedOpen Closed
    2016-08-25 kcc Attached File- Added 7370644ede67ea271409c8bfcd1aad9329e193e8.gz, #38355
    2016-08-25 kcc Attached File#38354 Removed
    2016-08-25 wl StatusNone Need Info
        Assigned toNone wl
    2016-08-25 kcc Attached File- Added CORPORA%2FARTIFACTS%2Ftimeout-7370644ede67ea271409c8bfcd1aad9329e193e8, #38354

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