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Re: [Qemu-devel] [PATCH] tests: add fuzzing to visitor tests


From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH] tests: add fuzzing to visitor tests
Date: Wed, 30 Jan 2013 17:37:25 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0

Am 19.01.2013 17:01, schrieb Blue Swirl:
> Perform input tests on random data.
> 
> Improvement to code coverage for qapi/string-input-visitor.c
> is about 3 percentage points.
> 
> Signed-off-by: Blue Swirl <address@hidden>

Does this test pass for you? It consistently segfaults for me.

/string-visitor/input/fuzz: ==30703== Conditional jump or move depends
on uninitialised value(s)
==30703==    at 0x508E738: g_free (gmem.c:262)
==30703==    by 0x10B123: test_visitor_in_fuzz
(test-string-input-visitor.c:207)
==30703==    by 0x50ABCA7: g_test_run_suite_internal (gtestutils.c:1174)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50AC10E: g_test_run_suite (gtestutils.c:1282)
==30703==    by 0x108FBF: main (test-string-input-visitor.c:242)
==30703==
==30703== Conditional jump or move depends on uninitialised value(s)
==30703==    at 0x4A055B4: free (vg_replace_malloc.c:366)
==30703==    by 0x508E742: g_free (gmem.c:263)
==30703==    by 0x10B123: test_visitor_in_fuzz
(test-string-input-visitor.c:207)
==30703==    by 0x50ABCA7: g_test_run_suite_internal (gtestutils.c:1174)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50AC10E: g_test_run_suite (gtestutils.c:1282)
==30703==    by 0x108FBF: main (test-string-input-visitor.c:242)
==30703==
==30703== Invalid free() / delete / delete[]
==30703==    at 0x4A055FE: free (vg_replace_malloc.c:366)
==30703==    by 0x508E742: g_free (gmem.c:263)
==30703==    by 0x10B123: test_visitor_in_fuzz
(test-string-input-visitor.c:207)
==30703==    by 0x50ABCA7: g_test_run_suite_internal (gtestutils.c:1174)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50ABE15: g_test_run_suite_internal (gtestutils.c:1233)
==30703==    by 0x50AC10E: g_test_run_suite (gtestutils.c:1282)
==30703==    by 0x108FBF: main (test-string-input-visitor.c:242)
==30703==  Address 0x2102508021024020 is not stack'd, malloc'd or
(recently) free'd
==30703==



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