bugThe FreeType Project - Bugs: bug #46202, NULL deref in T1_Get_MM_Var


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bug #46202: NULL deref in T1_Get_MM_Var

Submitter:  Kostya Serebryany <kcc>
Submitted:  Tue 13 Oct 2015 05:07:00 PM UTC
Severity:  3 - Normal Item Group:  None
Status:  Fixed Privacy:  Public
Assigned to:  wl Open/Closed:  Closed
Planned Release:  2.6.2

Tue 13 Oct 2015 06:43:58 PM UTC, comment #2: 

Fixed in git.  Thanks for the report.

Werner LEMBERG <wl>
Group administrator
Tue 13 Oct 2015 05:09:19 PM UTC, comment #1: 
Kostya Serebryany <kcc>
Group Member
Tue 13 Oct 2015 05:07:00 PM UTC, original submission:  

The libFuzzer bot has found a new crash.

Not sure if this is a regression or an old bug discovered just now. Please confirm.

==19204==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000428da0 bp 0x7ffe0c58a270 sp 0x7ffe0c5899f0 T0)
    #0 0x428d9f in strcmp
    #1 0x5b8d5f in T1_Get_MM_Var src/type1/t1load.c:339:12
    #2 0x5556bb in FT_Get_MM_Var src/base/ftmm.c:112:17
    #3 0x4d91dd in setIntermediateAxis(FT_FaceRec_*)
    #4 0x4d8c1a in LLVMFuzzerTestOneInput

Repro attached.

Kostya Serebryany <kcc>
Group Member


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Attached Files
file #35185:  crash-ca2b9b7e0a30afc8d497f0e0b43d713812377abb added by kcc (12KiB - application/octet-stream)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by wl (Posted a comment)
  • -email is unavailable- added by kcc (Submitted the item)

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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-10-13 wl StatusNone Fixed
        Assigned toNone wl
        Open/ClosedOpen Closed
        Planned ReleaseNone 2.6.2
    2015-10-13 kcc Attached File- Added crash-ca2b9b7e0a30afc8d497f0e0b43d713812377abb, #35185

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